21708635

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1009}}^1$

素因数の和:1358

約数の個数: 16

約数和(自身を含む): 28166880

約数和(自身を除く): 6458245

約数列:

[1, 5, 13, 65, 331, 1009, 1655, 4303, 5045, 13117, 21515, 65585, 333979, 1669895, 4341727, 21708635]

約数ペア:

[(1, 21708635), (5, 4341727), (13, 1669895), (65, 333979), (331, 65585), (1009, 21515), (1655, 13117), (4303, 5045)]