21459452

素因数分解:

$2^2\times 7^3\times {\mathrm{15641}}^1$

素因数の和:15666

約数の個数: 24

約数和(自身を含む): 43797600

約数和(自身を除く): 22338148

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15641, 31282, 62564, 109487, 218974, 437948, 766409, 1532818, 3065636, 5364863, 10729726, 21459452]

約数ペア:

[(1, 21459452), (2, 10729726), (4, 5364863), (7, 3065636), (14, 1532818), (28, 766409), (49, 437948), (98, 218974), (196, 109487), (343, 62564), (686, 31282), (1372, 15641)]