21693840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:409

約数の個数: 160

約数和(自身を含む): 79161600

約数和(自身を除く): 57467760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 105, 111, 112, 120, 140, 148, 168, 185, 210, 222, 240, 259, 280, 296, 336, 349, 370, 420, 444, 518, 555, 560, 592, 698, 740, 777, 840, 888, 1036, 1047, 1110, 1295, 1396, 1480, 1554, 1680, 1745, 1776, 2072, 2094, 2220, 2443, 2590, 2792, 2960, 3108, 3490, 3885, 4144, 4188, 4440, 4886, 5180, 5235, 5584, 6216, 6980, 7329, 7770, 8376, 8880, 9772, 10360, 10470, 12215, 12432, 12913, 13960, 14658, 15540, 16752, 19544, 20720, 20940, 24430, 25826, 27920, 29316, 31080, 36645, 38739, 39088, 41880, 48860, 51652, 58632, 62160, 64565, 73290, 77478, 83760, 90391, 97720, 103304, 117264, 129130, 146580, 154956, 180782, 193695, 195440, 206608, 258260, 271173, 293160, 309912, 361564, 387390, 451955, 516520, 542346, 586320, 619824, 723128, 774780, 903910, 1033040, 1084692, 1355865, 1446256, 1549560, 1807820, 2169384, 2711730, 3099120, 3615640, 4338768, 5423460, 7231280, 10846920, 21693840]

約数ペア:

[(1, 21693840), (2, 10846920), (3, 7231280), (4, 5423460), (5, 4338768), (6, 3615640), (7, 3099120), (8, 2711730), (10, 2169384), (12, 1807820), (14, 1549560), (15, 1446256), (16, 1355865), (20, 1084692), (21, 1033040), (24, 903910), (28, 774780), (30, 723128), (35, 619824), (37, 586320), (40, 542346), (42, 516520), (48, 451955), (56, 387390), (60, 361564), (70, 309912), (74, 293160), (80, 271173), (84, 258260), (105, 206608), (111, 195440), (112, 193695), (120, 180782), (140, 154956), (148, 146580), (168, 129130), (185, 117264), (210, 103304), (222, 97720), (240, 90391), (259, 83760), (280, 77478), (296, 73290), (336, 64565), (349, 62160), (370, 58632), (420, 51652), (444, 48860), (518, 41880), (555, 39088), (560, 38739), (592, 36645), (698, 31080), (740, 29316), (777, 27920), (840, 25826), (888, 24430), (1036, 20940), (1047, 20720), (1110, 19544), (1295, 16752), (1396, 15540), (1480, 14658), (1554, 13960), (1680, 12913), (1745, 12432), (1776, 12215), (2072, 10470), (2094, 10360), (2220, 9772), (2443, 8880), (2590, 8376), (2792, 7770), (2960, 7329), (3108, 6980), (3490, 6216), (3885, 5584), (4144, 5235), (4188, 5180), (4440, 4886)]