19997562

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{571}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 43243200

約数和(自身を除く): 23245638

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 449, 571, 898, 1142, 1347, 1713, 2694, 3426, 5837, 7423, 11674, 14846, 17511, 22269, 35022, 44538, 256379, 512758, 769137, 1538274, 3332927, 6665854, 9998781, 19997562]

約数ペア:

[(1, 19997562), (2, 9998781), (3, 6665854), (6, 3332927), (13, 1538274), (26, 769137), (39, 512758), (78, 256379), (449, 44538), (571, 35022), (898, 22269), (1142, 17511), (1347, 14846), (1713, 11674), (2694, 7423), (3426, 5837)]