21149544

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1279}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 36911256

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 53, 78, 104, 106, 156, 159, 212, 312, 318, 424, 636, 689, 1272, 1279, 1378, 2067, 2558, 2756, 3837, 4134, 5116, 5512, 7674, 8268, 10232, 15348, 16536, 16627, 30696, 33254, 49881, 66508, 67787, 99762, 133016, 135574, 199524, 203361, 271148, 399048, 406722, 542296, 813444, 881231, 1626888, 1762462, 2643693, 3524924, 5287386, 7049848, 10574772, 21149544]

約数ペア:

[(1, 21149544), (2, 10574772), (3, 7049848), (4, 5287386), (6, 3524924), (8, 2643693), (12, 1762462), (13, 1626888), (24, 881231), (26, 813444), (39, 542296), (52, 406722), (53, 399048), (78, 271148), (104, 203361), (106, 199524), (156, 135574), (159, 133016), (212, 99762), (312, 67787), (318, 66508), (424, 49881), (636, 33254), (689, 30696), (1272, 16627), (1279, 16536), (1378, 15348), (2067, 10232), (2558, 8268), (2756, 7674), (3837, 5512), (4134, 5116)]