221386965

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{476101}}^1$

素因数の和:476140

約数の個数: 16

約数和(自身を含む): 365646336

約数和(自身を除く): 144259371

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 476101, 1428303, 2380505, 7141515, 14759131, 44277393, 73795655, 221386965]

約数ペア:

[(1, 221386965), (3, 73795655), (5, 44277393), (15, 14759131), (31, 7141515), (93, 2380505), (155, 1428303), (465, 476101)]