21372548

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{907}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 38593632

約数和(自身を除く): 17221084

約数列:

[1, 2, 4, 43, 86, 137, 172, 274, 548, 907, 1814, 3628, 5891, 11782, 23564, 39001, 78002, 124259, 156004, 248518, 497036, 5343137, 10686274, 21372548]

約数ペア:

[(1, 21372548), (2, 10686274), (4, 5343137), (43, 497036), (86, 248518), (137, 156004), (172, 124259), (274, 78002), (548, 39001), (907, 23564), (1814, 11782), (3628, 5891)]