21374428

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 38110464

約数和(自身を除く): 16736036

約数列:

[1, 2, 4, 101, 191, 202, 277, 382, 404, 554, 764, 1108, 19291, 27977, 38582, 52907, 55954, 77164, 105814, 111908, 211628, 5343607, 10687214, 21374428]

約数ペア:

[(1, 21374428), (2, 10687214), (4, 5343607), (101, 211628), (191, 111908), (202, 105814), (277, 77164), (382, 55954), (404, 52907), (554, 38582), (764, 27977), (1108, 19291)]