21399466

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22621}}^1$

素因数の和:22677

約数の個数: 16

約数和(自身を含む): 35833248

約数和(自身を除く): 14433782

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 22621, 45242, 248831, 497662, 972703, 1945406, 10699733, 21399466]

約数ペア:

[(1, 21399466), (2, 10699733), (11, 1945406), (22, 972703), (43, 497662), (86, 248831), (473, 45242), (946, 22621)]