21490392

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 69465600

約数和(自身を除く): 47975208

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 29, 33, 42, 44, 56, 58, 66, 77, 84, 87, 88, 116, 132, 154, 168, 174, 203, 231, 232, 264, 308, 319, 348, 401, 406, 462, 609, 616, 638, 696, 802, 812, 924, 957, 1203, 1218, 1276, 1604, 1624, 1848, 1914, 2233, 2406, 2436, 2552, 2807, 3208, 3828, 4411, 4466, 4812, 4872, 5614, 6699, 7656, 8421, 8822, 8932, 9624, 11228, 11629, 13233, 13398, 16842, 17644, 17864, 22456, 23258, 26466, 26796, 30877, 33684, 34887, 35288, 46516, 52932, 53592, 61754, 67368, 69774, 81403, 92631, 93032, 105864, 123508, 127919, 139548, 162806, 185262, 244209, 247016, 255838, 279096, 325612, 370524, 383757, 488418, 511676, 651224, 741048, 767514, 895433, 976836, 1023352, 1535028, 1790866, 1953672, 2686299, 3070056, 3581732, 5372598, 7163464, 10745196, 21490392]

約数ペア:

[(1, 21490392), (2, 10745196), (3, 7163464), (4, 5372598), (6, 3581732), (7, 3070056), (8, 2686299), (11, 1953672), (12, 1790866), (14, 1535028), (21, 1023352), (22, 976836), (24, 895433), (28, 767514), (29, 741048), (33, 651224), (42, 511676), (44, 488418), (56, 383757), (58, 370524), (66, 325612), (77, 279096), (84, 255838), (87, 247016), (88, 244209), (116, 185262), (132, 162806), (154, 139548), (168, 127919), (174, 123508), (203, 105864), (231, 93032), (232, 92631), (264, 81403), (308, 69774), (319, 67368), (348, 61754), (401, 53592), (406, 52932), (462, 46516), (609, 35288), (616, 34887), (638, 33684), (696, 30877), (802, 26796), (812, 26466), (924, 23258), (957, 22456), (1203, 17864), (1218, 17644), (1276, 16842), (1604, 13398), (1624, 13233), (1848, 11629), (1914, 11228), (2233, 9624), (2406, 8932), (2436, 8822), (2552, 8421), (2807, 7656), (3208, 6699), (3828, 5614), (4411, 4872), (4466, 4812)]