20679828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6977}}^1$

素因数の和:7016

約数の個数: 48

約数和(自身を含む): 54707520

約数和(自身を除く): 34027692

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 6977, 13954, 20931, 27908, 41862, 83724, 90701, 132563, 181402, 265126, 272103, 362804, 397689, 530252, 544206, 795378, 1088412, 1590756, 1723319, 3446638, 5169957, 6893276, 10339914, 20679828]

約数ペア:

[(1, 20679828), (2, 10339914), (3, 6893276), (4, 5169957), (6, 3446638), (12, 1723319), (13, 1590756), (19, 1088412), (26, 795378), (38, 544206), (39, 530252), (52, 397689), (57, 362804), (76, 272103), (78, 265126), (114, 181402), (156, 132563), (228, 90701), (247, 83724), (494, 41862), (741, 27908), (988, 20931), (1482, 13954), (2964, 6977)]