21527764

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1249}}^1$

素因数の和:1423

約数の個数: 24

約数和(自身を含む): 39200000

約数和(自身を除く): 17672236

約数列:

[1, 2, 4, 31, 62, 124, 139, 278, 556, 1249, 2498, 4309, 4996, 8618, 17236, 38719, 77438, 154876, 173611, 347222, 694444, 5381941, 10763882, 21527764]

約数ペア:

[(1, 21527764), (2, 10763882), (4, 5381941), (31, 694444), (62, 347222), (124, 173611), (139, 154876), (278, 77438), (556, 38719), (1249, 17236), (2498, 8618), (4309, 4996)]