21284545

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{3137}}^1$

素因数の和:3224

約数の個数: 16

約数和(自身を含む): 27112320

約数和(自身を除く): 5827775

約数列:

[1, 5, 23, 59, 115, 295, 1357, 3137, 6785, 15685, 72151, 185083, 360755, 925415, 4256909, 21284545]

約数ペア:

[(1, 21284545), (5, 4256909), (23, 925415), (59, 360755), (115, 185083), (295, 72151), (1357, 15685), (3137, 6785)]