20708493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 31051776

約数和(自身を除く): 10343283

約数列:

[1, 3, 13, 37, 39, 111, 113, 127, 339, 381, 481, 1443, 1469, 1651, 4181, 4407, 4699, 4953, 12543, 14097, 14351, 43053, 54353, 61087, 163059, 183261, 186563, 530987, 559689, 1592961, 6902831, 20708493]

約数ペア:

[(1, 20708493), (3, 6902831), (13, 1592961), (37, 559689), (39, 530987), (111, 186563), (113, 183261), (127, 163059), (339, 61087), (381, 54353), (481, 43053), (1443, 14351), (1469, 14097), (1651, 12543), (4181, 4953), (4407, 4699)]