21524240

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2381}}^1$

素因数の和:2507

約数の個数: 40

約数和(自身を含む): 50507928

約数和(自身を除く): 28983688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 2381, 4520, 4762, 9040, 9524, 11905, 19048, 23810, 38096, 47620, 95240, 190480, 269053, 538106, 1076212, 1345265, 2152424, 2690530, 4304848, 5381060, 10762120, 21524240]

約数ペア:

[(1, 21524240), (2, 10762120), (4, 5381060), (5, 4304848), (8, 2690530), (10, 2152424), (16, 1345265), (20, 1076212), (40, 538106), (80, 269053), (113, 190480), (226, 95240), (452, 47620), (565, 38096), (904, 23810), (1130, 19048), (1808, 11905), (2260, 9524), (2381, 9040), (4520, 4762)]