66955408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{321901}}^1$

素因数の和:321922

約数の個数: 20

約数和(自身を含む): 139705468

約数和(自身を除く): 72750060

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 321901, 643802, 1287604, 2575208, 4184713, 5150416, 8369426, 16738852, 33477704, 66955408]

約数ペア:

[(1, 66955408), (2, 33477704), (4, 16738852), (8, 8369426), (13, 5150416), (16, 4184713), (26, 2575208), (52, 1287604), (104, 643802), (208, 321901)]