211145420

素因数分解:

$2^2\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{4931}}^1$

素因数の和:7081

約数の個数: 24

約数和(自身を含む): 443702448

約数和(自身を除く): 232557028

約数列:

[1, 2, 4, 5, 10, 20, 2141, 4282, 4931, 8564, 9862, 10705, 19724, 21410, 24655, 42820, 49310, 98620, 10557271, 21114542, 42229084, 52786355, 105572710, 211145420]

約数ペア:

[(1, 211145420), (2, 105572710), (4, 52786355), (5, 42229084), (10, 21114542), (20, 10557271), (2141, 98620), (4282, 49310), (4931, 42820), (8564, 24655), (9862, 21410), (10705, 19724)]