20918024

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4157}}^1$

素因数の和:4217

約数の個数: 32

約数和(自身を含む): 42661080

約数和(自身を除く): 21743056

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 4157, 5032, 8314, 16628, 33256, 70669, 141338, 153809, 282676, 307618, 565352, 615236, 1230472, 2614753, 5229506, 10459012, 20918024]

約数ペア:

[(1, 20918024), (2, 10459012), (4, 5229506), (8, 2614753), (17, 1230472), (34, 615236), (37, 565352), (68, 307618), (74, 282676), (136, 153809), (148, 141338), (296, 70669), (629, 33256), (1258, 16628), (2516, 8314), (4157, 5032)]