21903670521

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{51781727}}^1$

素因数の和:51781780

約数の個数: 12

約数和(自身を含む): 32311798272

約数和(自身を除く): 10408127751

約数列:

[1, 3, 9, 47, 141, 423, 51781727, 155345181, 466035543, 2433741169, 7301223507, 21903670521]

約数ペア:

[(1, 21903670521), (3, 7301223507), (9, 2433741169), (47, 466035543), (141, 155345181), (423, 51781727)]