20227974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 46066944

約数和(自身を除く): 25838970

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 43, 74, 78, 86, 111, 129, 163, 222, 258, 326, 481, 489, 559, 962, 978, 1118, 1443, 1591, 1677, 2119, 2886, 3182, 3354, 4238, 4773, 6031, 6357, 7009, 9546, 12062, 12714, 14018, 18093, 20683, 21027, 36186, 41366, 42054, 62049, 78403, 91117, 124098, 156806, 182234, 235209, 259333, 273351, 470418, 518666, 546702, 777999, 1555998, 3371329, 6742658, 10113987, 20227974]

約数ペア:

[(1, 20227974), (2, 10113987), (3, 6742658), (6, 3371329), (13, 1555998), (26, 777999), (37, 546702), (39, 518666), (43, 470418), (74, 273351), (78, 259333), (86, 235209), (111, 182234), (129, 156806), (163, 124098), (222, 91117), (258, 78403), (326, 62049), (481, 42054), (489, 41366), (559, 36186), (962, 21027), (978, 20683), (1118, 18093), (1443, 14018), (1591, 12714), (1677, 12062), (2119, 9546), (2886, 7009), (3182, 6357), (3354, 6031), (4238, 4773)]