21868406

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^2\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 36

約数和(自身を含む): 39457908

約数和(自身を除く): 17589502

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 163, 259, 326, 518, 1141, 1369, 1813, 2282, 2738, 3626, 6031, 7987, 9583, 12062, 15974, 19166, 42217, 67081, 84434, 134162, 223147, 295519, 446294, 591038, 1562029, 3124058, 10934203, 21868406]

約数ペア:

[(1, 21868406), (2, 10934203), (7, 3124058), (14, 1562029), (37, 591038), (49, 446294), (74, 295519), (98, 223147), (163, 134162), (259, 84434), (326, 67081), (518, 42217), (1141, 19166), (1369, 15974), (1813, 12062), (2282, 9583), (2738, 7987), (3626, 6031)]