20896473

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{3911}}^1$

素因数の和:4064

約数の個数: 16

約数和(自身を含む): 30231936

約数和(自身を除く): 9335463

約数列:

[1, 3, 13, 39, 137, 411, 1781, 3911, 5343, 11733, 50843, 152529, 535807, 1607421, 6965491, 20896473]

約数ペア:

[(1, 20896473), (3, 6965491), (13, 1607421), (39, 535807), (137, 152529), (411, 50843), (1781, 11733), (3911, 5343)]