21267420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2791}}^1$

素因数の和:2930

約数の個数: 48

約数和(自身を含む): 60039168

約数和(自身を除く): 38771748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2791, 3810, 5582, 7620, 8373, 11164, 13955, 16746, 27910, 33492, 41865, 55820, 83730, 167460, 354457, 708914, 1063371, 1417828, 1772285, 2126742, 3544570, 4253484, 5316855, 7089140, 10633710, 21267420]

約数ペア:

[(1, 21267420), (2, 10633710), (3, 7089140), (4, 5316855), (5, 4253484), (6, 3544570), (10, 2126742), (12, 1772285), (15, 1417828), (20, 1063371), (30, 708914), (60, 354457), (127, 167460), (254, 83730), (381, 55820), (508, 41865), (635, 33492), (762, 27910), (1270, 16746), (1524, 13955), (1905, 11164), (2540, 8373), (2791, 7620), (3810, 5582)]