21616920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:210

約数の個数: 192

約数和(自身を含む): 78624000

約数和(自身を除く): 57007080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 52, 60, 62, 65, 72, 78, 90, 93, 104, 117, 120, 124, 130, 149, 155, 156, 180, 186, 195, 234, 248, 260, 279, 298, 310, 312, 360, 372, 390, 403, 447, 465, 468, 520, 558, 585, 596, 620, 744, 745, 780, 806, 894, 930, 936, 1116, 1170, 1192, 1209, 1240, 1341, 1395, 1490, 1560, 1612, 1788, 1860, 1937, 2015, 2232, 2235, 2340, 2418, 2682, 2790, 2980, 3224, 3576, 3627, 3720, 3874, 4030, 4470, 4619, 4680, 4836, 5364, 5580, 5811, 5960, 6045, 6705, 7254, 7748, 8060, 8940, 9238, 9672, 9685, 10728, 11160, 11622, 12090, 13410, 13857, 14508, 15496, 16120, 17433, 17880, 18135, 18476, 19370, 23095, 23244, 24180, 26820, 27714, 29016, 29055, 34866, 36270, 36952, 38740, 41571, 46190, 46488, 48360, 53640, 55428, 58110, 60047, 69285, 69732, 72540, 77480, 83142, 87165, 92380, 110856, 116220, 120094, 138570, 139464, 145080, 166284, 174330, 180141, 184760, 207855, 232440, 240188, 277140, 300235, 332568, 348660, 360282, 415710, 480376, 540423, 554280, 600470, 697320, 720564, 831420, 900705, 1080846, 1200940, 1441128, 1662840, 1801410, 2161692, 2401880, 2702115, 3602820, 4323384, 5404230, 7205640, 10808460, 21616920]

約数ペア:

[(1, 21616920), (2, 10808460), (3, 7205640), (4, 5404230), (5, 4323384), (6, 3602820), (8, 2702115), (9, 2401880), (10, 2161692), (12, 1801410), (13, 1662840), (15, 1441128), (18, 1200940), (20, 1080846), (24, 900705), (26, 831420), (30, 720564), (31, 697320), (36, 600470), (39, 554280), (40, 540423), (45, 480376), (52, 415710), (60, 360282), (62, 348660), (65, 332568), (72, 300235), (78, 277140), (90, 240188), (93, 232440), (104, 207855), (117, 184760), (120, 180141), (124, 174330), (130, 166284), (149, 145080), (155, 139464), (156, 138570), (180, 120094), (186, 116220), (195, 110856), (234, 92380), (248, 87165), (260, 83142), (279, 77480), (298, 72540), (310, 69732), (312, 69285), (360, 60047), (372, 58110), (390, 55428), (403, 53640), (447, 48360), (465, 46488), (468, 46190), (520, 41571), (558, 38740), (585, 36952), (596, 36270), (620, 34866), (744, 29055), (745, 29016), (780, 27714), (806, 26820), (894, 24180), (930, 23244), (936, 23095), (1116, 19370), (1170, 18476), (1192, 18135), (1209, 17880), (1240, 17433), (1341, 16120), (1395, 15496), (1490, 14508), (1560, 13857), (1612, 13410), (1788, 12090), (1860, 11622), (1937, 11160), (2015, 10728), (2232, 9685), (2235, 9672), (2340, 9238), (2418, 8940), (2682, 8060), (2790, 7748), (2980, 7254), (3224, 6705), (3576, 6045), (3627, 5960), (3720, 5811), (3874, 5580), (4030, 5364), (4470, 4836), (4619, 4680)]