81543554

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{19687}}^1$

素因数の和:19817

約数の個数: 16

約数和(自身を含む): 129940800

約数和(自身を除く): 48397246

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 19687, 39374, 374053, 748106, 2145883, 4291766, 40771777, 81543554]

約数ペア:

[(1, 81543554), (2, 40771777), (19, 4291766), (38, 2145883), (109, 748106), (218, 374053), (2071, 39374), (4142, 19687)]