21493560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:901

約数の個数: 128

約数和(自身を含む): 74131200

約数和(自身を除く): 52637640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 76, 88, 95, 110, 114, 120, 132, 152, 165, 190, 209, 220, 228, 264, 285, 330, 380, 418, 440, 456, 570, 627, 660, 760, 836, 857, 1045, 1140, 1254, 1320, 1672, 1714, 2090, 2280, 2508, 2571, 3135, 3428, 4180, 4285, 5016, 5142, 6270, 6856, 8360, 8570, 9427, 10284, 12540, 12855, 16283, 17140, 18854, 20568, 25080, 25710, 28281, 32566, 34280, 37708, 47135, 48849, 51420, 56562, 65132, 75416, 81415, 94270, 97698, 102840, 113124, 130264, 141405, 162830, 179113, 188540, 195396, 226248, 244245, 282810, 325660, 358226, 377080, 390792, 488490, 537339, 565620, 651320, 716452, 895565, 976980, 1074678, 1131240, 1432904, 1791130, 1953960, 2149356, 2686695, 3582260, 4298712, 5373390, 7164520, 10746780, 21493560]

約数ペア:

[(1, 21493560), (2, 10746780), (3, 7164520), (4, 5373390), (5, 4298712), (6, 3582260), (8, 2686695), (10, 2149356), (11, 1953960), (12, 1791130), (15, 1432904), (19, 1131240), (20, 1074678), (22, 976980), (24, 895565), (30, 716452), (33, 651320), (38, 565620), (40, 537339), (44, 488490), (55, 390792), (57, 377080), (60, 358226), (66, 325660), (76, 282810), (88, 244245), (95, 226248), (110, 195396), (114, 188540), (120, 179113), (132, 162830), (152, 141405), (165, 130264), (190, 113124), (209, 102840), (220, 97698), (228, 94270), (264, 81415), (285, 75416), (330, 65132), (380, 56562), (418, 51420), (440, 48849), (456, 47135), (570, 37708), (627, 34280), (660, 32566), (760, 28281), (836, 25710), (857, 25080), (1045, 20568), (1140, 18854), (1254, 17140), (1320, 16283), (1672, 12855), (1714, 12540), (2090, 10284), (2280, 9427), (2508, 8570), (2571, 8360), (3135, 6856), (3428, 6270), (4180, 5142), (4285, 5016)]