20512690541

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{621239}}^1$

素因数の和:621388

約数の個数: 16

約数和(自身を含む): 24153811200

約数和(自身を除く): 3641120659

約数列:

[1, 7, 53, 89, 371, 623, 4717, 33019, 621239, 4348673, 32925667, 55290271, 230479669, 387031897, 2930384363, 20512690541]

約数ペア:

[(1, 20512690541), (7, 2930384363), (53, 387031897), (89, 230479669), (371, 55290271), (623, 32925667), (4717, 4348673), (33019, 621239)]