20374641

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{983}}^1$

素因数の和:1050

約数の個数: 36

約数和(自身を含む): 34998912

約数和(自身を除く): 14624271

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 983, 987, 2303, 2949, 2961, 6881, 6909, 8847, 20643, 20727, 46201, 48167, 61929, 138603, 144501, 323407, 415809, 433503, 970221, 2263849, 2910663, 6791547, 20374641]

約数ペア:

[(1, 20374641), (3, 6791547), (7, 2910663), (9, 2263849), (21, 970221), (47, 433503), (49, 415809), (63, 323407), (141, 144501), (147, 138603), (329, 61929), (423, 48167), (441, 46201), (983, 20727), (987, 20643), (2303, 8847), (2949, 6909), (2961, 6881)]