21253244

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{881}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 38476368

約数和(自身を除く): 17223124

約数列:

[1, 2, 4, 37, 74, 148, 163, 326, 652, 881, 1762, 3524, 6031, 12062, 24124, 32597, 65194, 130388, 143603, 287206, 574412, 5313311, 10626622, 21253244]

約数ペア:

[(1, 21253244), (2, 10626622), (4, 5313311), (37, 574412), (74, 287206), (148, 143603), (163, 130388), (326, 65194), (652, 32597), (881, 24124), (1762, 12062), (3524, 6031)]