21781862

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{6343}}^1$

素因数の和:6463

約数の個数: 16

約数和(自身を含む): 34942752

約数和(自身を除く): 13160890

約数列:

[1, 2, 17, 34, 101, 202, 1717, 3434, 6343, 12686, 107831, 215662, 640643, 1281286, 10890931, 21781862]

約数ペア:

[(1, 21781862), (2, 10890931), (17, 1281286), (34, 640643), (101, 215662), (202, 107831), (1717, 12686), (3434, 6343)]