21324821

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{719}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 25804800

約数和(自身を除く): 4479979

約数列:

[1, 7, 19, 133, 223, 719, 1561, 4237, 5033, 13661, 29659, 95627, 160337, 1122359, 3046403, 21324821]

約数ペア:

[(1, 21324821), (7, 3046403), (19, 1122359), (133, 160337), (223, 95627), (719, 29659), (1561, 13661), (4237, 5033)]