19718998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 14149802

約数列:

[1, 2, 13, 19, 26, 38, 179, 223, 247, 358, 446, 494, 2327, 2899, 3401, 4237, 4654, 5798, 6802, 8474, 39917, 44213, 55081, 79834, 88426, 110162, 518921, 758423, 1037842, 1516846, 9859499, 19718998]

約数ペア:

[(1, 19718998), (2, 9859499), (13, 1516846), (19, 1037842), (26, 758423), (38, 518921), (179, 110162), (223, 88426), (247, 79834), (358, 55081), (446, 44213), (494, 39917), (2327, 8474), (2899, 6802), (3401, 5798), (4237, 4654)]