20137575507

素因数分解:

$3^1\times 7^1\times {\mathrm{20071}}^1\times {\mathrm{47777}}^1$

素因数の和:67858

約数の個数: 16

約数和(自身を含む): 30688000512

約数和(自身を除く): 10550425005

約数列:

[1, 3, 7, 21, 20071, 47777, 60213, 140497, 143331, 334439, 421491, 1003317, 958932167, 2876796501, 6712525169, 20137575507]

約数ペア:

[(1, 20137575507), (3, 6712525169), (7, 2876796501), (21, 958932167), (20071, 1003317), (47777, 421491), (60213, 334439), (140497, 143331)]