17721808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{85201}}^1$

素因数の和:85222

約数の個数: 20

約数和(自身を含む): 36977668

約数和(自身を除く): 19255860

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 85201, 170402, 340804, 681608, 1107613, 1363216, 2215226, 4430452, 8860904, 17721808]

約数ペア:

[(1, 17721808), (2, 8860904), (4, 4430452), (8, 2215226), (13, 1363216), (16, 1107613), (26, 681608), (52, 340804), (104, 170402), (208, 85201)]