18638416

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{40169}}^1$

素因数の和:40206

約数の個数: 20

約数和(自身を含む): 37358100

約数和(自身を除く): 18719684

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 40169, 80338, 160676, 321352, 642704, 1164901, 2329802, 4659604, 9319208, 18638416]

約数ペア:

[(1, 18638416), (2, 9319208), (4, 4659604), (8, 2329802), (16, 1164901), (29, 642704), (58, 321352), (116, 160676), (232, 80338), (464, 40169)]