19664086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1553}}^1$

素因数の和:2055

約数の個数: 16

約数和(自身を含む): 31850784

約数和(自身を除く): 12186698

約数列:

[1, 2, 13, 26, 487, 974, 1553, 3106, 6331, 12662, 20189, 40378, 756311, 1512622, 9832043, 19664086]

約数ペア:

[(1, 19664086), (2, 9832043), (13, 1512622), (26, 756311), (487, 40378), (974, 20189), (1553, 12662), (3106, 6331)]