19998796

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{829}}^1$

素因数の和:1033

約数の個数: 24

約数和(自身を含む): 36207920

約数和(自身を除く): 16209124

約数列:

[1, 2, 4, 37, 74, 148, 163, 326, 652, 829, 1658, 3316, 6031, 12062, 24124, 30673, 61346, 122692, 135127, 270254, 540508, 4999699, 9999398, 19998796]

約数ペア:

[(1, 19998796), (2, 9999398), (4, 4999699), (37, 540508), (74, 270254), (148, 135127), (163, 122692), (326, 61346), (652, 30673), (829, 24124), (1658, 12062), (3316, 6031)]