20872962

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 49645440

約数和(自身を除く): 28772478

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 271, 389, 542, 778, 813, 1167, 1626, 2334, 2439, 2981, 3501, 4279, 4878, 5962, 7002, 8558, 8943, 12837, 17886, 25674, 26829, 38511, 53658, 77022, 105419, 210838, 316257, 632514, 948771, 1159609, 1897542, 2319218, 3478827, 6957654, 10436481, 20872962]

約数ペア:

[(1, 20872962), (2, 10436481), (3, 6957654), (6, 3478827), (9, 2319218), (11, 1897542), (18, 1159609), (22, 948771), (33, 632514), (66, 316257), (99, 210838), (198, 105419), (271, 77022), (389, 53658), (542, 38511), (778, 26829), (813, 25674), (1167, 17886), (1626, 12837), (2334, 8943), (2439, 8558), (2981, 7002), (3501, 5962), (4279, 4878)]