21901659

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3769}}^1$

素因数の和:3934

約数の個数: 16

約数和(自身を含む): 31668000

約数和(自身を除く): 9766341

約数列:

[1, 3, 13, 39, 149, 447, 1937, 3769, 5811, 11307, 48997, 146991, 561581, 1684743, 7300553, 21901659]

約数ペア:

[(1, 21901659), (3, 7300553), (13, 1684743), (39, 561581), (149, 146991), (447, 48997), (1937, 11307), (3769, 5811)]