21912908

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2897}}^1$

素因数の和:2993

約数の個数: 24

約数和(自身を含む): 40247424

約数和(自身を除く): 18334516

約数列:

[1, 2, 4, 31, 61, 62, 122, 124, 244, 1891, 2897, 3782, 5794, 7564, 11588, 89807, 176717, 179614, 353434, 359228, 706868, 5478227, 10956454, 21912908]

約数ペア:

[(1, 21912908), (2, 10956454), (4, 5478227), (31, 706868), (61, 359228), (62, 353434), (122, 179614), (124, 176717), (244, 89807), (1891, 11588), (2897, 7564), (3782, 5794)]