16620429

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 26231040

約数和(自身を除く): 9610611

約数列:

[1, 3, 7, 21, 53, 109, 137, 159, 327, 371, 411, 763, 959, 1113, 2289, 2877, 5777, 7261, 14933, 17331, 21783, 40439, 44799, 50827, 104531, 121317, 152481, 313593, 791449, 2374347, 5540143, 16620429]

約数ペア:

[(1, 16620429), (3, 5540143), (7, 2374347), (21, 791449), (53, 313593), (109, 152481), (137, 121317), (159, 104531), (327, 50827), (371, 44799), (411, 40439), (763, 21783), (959, 17331), (1113, 14933), (2289, 7261), (2877, 5777)]