221668408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{2131427}}^1$

素因数の和:2131446

約数の個数: 16

約数和(自身を含む): 447599880

約数和(自身を除く): 225931472

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 2131427, 4262854, 8525708, 17051416, 27708551, 55417102, 110834204, 221668408]

約数ペア:

[(1, 221668408), (2, 110834204), (4, 55417102), (8, 27708551), (13, 17051416), (26, 8525708), (52, 4262854), (104, 2131427)]