21423369

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{4357}}^1$

素因数の和:4520

約数の個数: 16

約数和(自身を含む): 31377600

約数和(自身を除く): 9954231

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4357, 4917, 13071, 47927, 143781, 649193, 1947579, 7141123, 21423369]

約数ペア:

[(1, 21423369), (3, 7141123), (11, 1947579), (33, 649193), (149, 143781), (447, 47927), (1639, 13071), (4357, 4917)]