20740419

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17327}}^1$

素因数の和:17359

約数の個数: 24

約数和(自身を含む): 36042240

約数和(自身を除く): 15301821

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17327, 51981, 121289, 155943, 329213, 363867, 987639, 1091601, 2304491, 2962917, 6913473, 20740419]

約数ペア:

[(1, 20740419), (3, 6913473), (7, 2962917), (9, 2304491), (19, 1091601), (21, 987639), (57, 363867), (63, 329213), (133, 155943), (171, 121289), (399, 51981), (1197, 17327)]