20430476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2357}}^1$

素因数の和:2569

約数の個数: 24

約数和(自身を含む): 39218256

約数和(自身を除く): 18787780

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 2167, 2357, 4334, 4714, 8668, 9428, 25927, 51854, 103708, 464329, 928658, 1857316, 5107619, 10215238, 20430476]

約数ペア:

[(1, 20430476), (2, 10215238), (4, 5107619), (11, 1857316), (22, 928658), (44, 464329), (197, 103708), (394, 51854), (788, 25927), (2167, 9428), (2357, 8668), (4334, 4714)]