21451036

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{941}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 38772720

約数和(自身を除く): 17321684

約数列:

[1, 2, 4, 41, 82, 139, 164, 278, 556, 941, 1882, 3764, 5699, 11398, 22796, 38581, 77162, 130799, 154324, 261598, 523196, 5362759, 10725518, 21451036]

約数ペア:

[(1, 21451036), (2, 10725518), (4, 5362759), (41, 523196), (82, 261598), (139, 154324), (164, 130799), (278, 77162), (556, 38581), (941, 22796), (1882, 11398), (3764, 5699)]