21491324495

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{2429771}}^1$

素因数の和:2429866

約数の個数: 16

約数和(自身を含む): 27116255520

約数和(自身を除く): 5624931025

約数列:

[1, 5, 29, 61, 145, 305, 1769, 8845, 2429771, 12148855, 70463359, 148216031, 352316795, 741080155, 4298264899, 21491324495]

約数ペア:

[(1, 21491324495), (5, 4298264899), (29, 741080155), (61, 352316795), (145, 148216031), (305, 70463359), (1769, 12148855), (8845, 2429771)]