21690064

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123239}}^1$

素因数の和:123258

約数の個数: 20

約数和(自身を含む): 45845280

約数和(自身を除く): 24155216

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123239, 246478, 492956, 985912, 1355629, 1971824, 2711258, 5422516, 10845032, 21690064]

約数ペア:

[(1, 21690064), (2, 10845032), (4, 5422516), (8, 2711258), (11, 1971824), (16, 1355629), (22, 985912), (44, 492956), (88, 246478), (176, 123239)]