21398122

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4861}}^1$

素因数の和:4965

約数の個数: 16

約数和(自身を含む): 33606144

約数和(自身を除く): 12208022

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4861, 9722, 150691, 301382, 345131, 690262, 10699061, 21398122]

約数ペア:

[(1, 21398122), (2, 10699061), (31, 690262), (62, 345131), (71, 301382), (142, 150691), (2201, 9722), (4402, 4861)]