19915694416

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8243251}}^1$

素因数の和:8243410

約数の個数: 20

約数和(自身を含む): 38842203424

約数和(自身を除く): 18926509008

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8243251, 16486502, 32973004, 65946008, 131892016, 1244730901, 2489461802, 4978923604, 9957847208, 19915694416]

約数ペア:

[(1, 19915694416), (2, 9957847208), (4, 4978923604), (8, 2489461802), (16, 1244730901), (151, 131892016), (302, 65946008), (604, 32973004), (1208, 16486502), (2416, 8243251)]