20698947

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1019}}^1$

素因数の和:1123

約数の個数: 24

約数和(自身を含む): 31240560

約数和(自身を除く): 10541613

約数列:

[1, 3, 9, 37, 61, 111, 183, 333, 549, 1019, 2257, 3057, 6771, 9171, 20313, 37703, 62159, 113109, 186477, 339327, 559431, 2299883, 6899649, 20698947]

約数ペア:

[(1, 20698947), (3, 6899649), (9, 2299883), (37, 559431), (61, 339327), (111, 186477), (183, 113109), (333, 62159), (549, 37703), (1019, 20313), (2257, 9171), (3057, 6771)]