19842796

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 35592480

約数和(自身を除く): 15749684

約数列:

[1, 2, 4, 71, 109, 142, 218, 284, 436, 641, 1282, 2564, 7739, 15478, 30956, 45511, 69869, 91022, 139738, 182044, 279476, 4960699, 9921398, 19842796]

約数ペア:

[(1, 19842796), (2, 9921398), (4, 4960699), (71, 279476), (109, 182044), (142, 139738), (218, 91022), (284, 69869), (436, 45511), (641, 30956), (1282, 15478), (2564, 7739)]