20658057

素因数分解:

$3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1579}}^1$

素因数の和:1685

約数の個数: 24

約数和(自身を含む): 32421600

約数和(自身を除く): 11763543

約数列:

[1, 3, 7, 21, 49, 89, 147, 267, 623, 1579, 1869, 4361, 4737, 11053, 13083, 33159, 77371, 140531, 232113, 421593, 983717, 2951151, 6886019, 20658057]

約数ペア:

[(1, 20658057), (3, 6886019), (7, 2951151), (21, 983717), (49, 421593), (89, 232113), (147, 140531), (267, 77371), (623, 33159), (1579, 13083), (1869, 11053), (4361, 4737)]