21493710

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:442

約数の個数: 96

約数和(自身を含む): 64658880

約数和(自身を除く): 43165170

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 109, 126, 210, 218, 313, 315, 327, 545, 626, 630, 654, 763, 939, 981, 1090, 1526, 1565, 1635, 1878, 1962, 2191, 2289, 2817, 3130, 3270, 3815, 4382, 4578, 4695, 4905, 5634, 6573, 6867, 7630, 9390, 9810, 10955, 11445, 13146, 13734, 14085, 19719, 21910, 22890, 28170, 32865, 34117, 34335, 39438, 65730, 68234, 68670, 98595, 102351, 170585, 197190, 204702, 238819, 307053, 341170, 477638, 511755, 614106, 716457, 1023510, 1194095, 1432914, 1535265, 2149371, 2388190, 3070530, 3582285, 4298742, 7164570, 10746855, 21493710]

約数ペア:

[(1, 21493710), (2, 10746855), (3, 7164570), (5, 4298742), (6, 3582285), (7, 3070530), (9, 2388190), (10, 2149371), (14, 1535265), (15, 1432914), (18, 1194095), (21, 1023510), (30, 716457), (35, 614106), (42, 511755), (45, 477638), (63, 341170), (70, 307053), (90, 238819), (105, 204702), (109, 197190), (126, 170585), (210, 102351), (218, 98595), (313, 68670), (315, 68234), (327, 65730), (545, 39438), (626, 34335), (630, 34117), (654, 32865), (763, 28170), (939, 22890), (981, 21910), (1090, 19719), (1526, 14085), (1565, 13734), (1635, 13146), (1878, 11445), (1962, 10955), (2191, 9810), (2289, 9390), (2817, 7630), (3130, 6867), (3270, 6573), (3815, 5634), (4382, 4905), (4578, 4695)]