21728564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37987}}^1$

素因数の和:38015

約数の個数: 24

約数和(自身を含む): 44673888

約数和(自身を除く): 22945324

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37987, 75974, 151948, 417857, 493831, 835714, 987662, 1671428, 1975324, 5432141, 10864282, 21728564]

約数ペア:

[(1, 21728564), (2, 10864282), (4, 5432141), (11, 1975324), (13, 1671428), (22, 987662), (26, 835714), (44, 493831), (52, 417857), (143, 151948), (286, 75974), (572, 37987)]