20127387

素因数分解:

$3^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{509}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 31395600

約数和(自身を除く): 11268213

約数列:

[1, 3, 7, 21, 49, 147, 269, 509, 807, 1527, 1883, 3563, 5649, 10689, 13181, 24941, 39543, 74823, 136921, 410763, 958447, 2875341, 6709129, 20127387]

約数ペア:

[(1, 20127387), (3, 6709129), (7, 2875341), (21, 958447), (49, 410763), (147, 136921), (269, 74823), (509, 39543), (807, 24941), (1527, 13181), (1883, 10689), (3563, 5649)]