20447931

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{14533}}^1$

素因数の和:14610

約数の個数: 16

約数和(自身を含む): 31625984

約数和(自身を除く): 11178053

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 14533, 43599, 101731, 305193, 973711, 2921133, 6815977, 20447931]

約数ペア:

[(1, 20447931), (3, 6815977), (7, 2921133), (21, 973711), (67, 305193), (201, 101731), (469, 43599), (1407, 14533)]