221401628

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{255071}}^1$

素因数の和:255113

約数の個数: 24

約数和(自身を含む): 457089024

約数和(自身を除く): 235687396

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 255071, 510142, 1020284, 1785497, 3570994, 7141988, 7907201, 15814402, 31628804, 55350407, 110700814, 221401628]

約数ペア:

[(1, 221401628), (2, 110700814), (4, 55350407), (7, 31628804), (14, 15814402), (28, 7907201), (31, 7141988), (62, 3570994), (124, 1785497), (217, 1020284), (434, 510142), (868, 255071)]