20918616

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{23557}}^1$

素因数の和:23603

約数の個数: 32

約数和(自身を含む): 53712240

約数和(自身を除く): 32793624

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 74, 111, 148, 222, 296, 444, 888, 23557, 47114, 70671, 94228, 141342, 188456, 282684, 565368, 871609, 1743218, 2614827, 3486436, 5229654, 6972872, 10459308, 20918616]

約数ペア:

[(1, 20918616), (2, 10459308), (3, 6972872), (4, 5229654), (6, 3486436), (8, 2614827), (12, 1743218), (24, 871609), (37, 565368), (74, 282684), (111, 188456), (148, 141342), (222, 94228), (296, 70671), (444, 47114), (888, 23557)]