20689735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{3329}}^1$

素因数の和:3458

約数の個数: 16

約数和(自身を含む): 27332640

約数和(自身を除く): 6642905

約数列:

[1, 5, 11, 55, 113, 565, 1243, 3329, 6215, 16645, 36619, 183095, 376177, 1880885, 4137947, 20689735]

約数ペア:

[(1, 20689735), (5, 4137947), (11, 1880885), (55, 376177), (113, 183095), (565, 36619), (1243, 16645), (3329, 6215)]