20993910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{99971}}^1$

素因数の和:99988

約数の個数: 32

約数和(自身を含む): 57583872

約数和(自身を除く): 36589962

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 99971, 199942, 299913, 499855, 599826, 699797, 999710, 1399594, 1499565, 2099391, 2999130, 3498985, 4198782, 6997970, 10496955, 20993910]

約数ペア:

[(1, 20993910), (2, 10496955), (3, 6997970), (5, 4198782), (6, 3498985), (7, 2999130), (10, 2099391), (14, 1499565), (15, 1399594), (21, 999710), (30, 699797), (35, 599826), (42, 499855), (70, 299913), (105, 199942), (210, 99971)]