21417808

素因数分解:

$2^4\times {\mathrm{1151}}^1\times {\mathrm{1163}}^1$

素因数の和:2322

約数の個数: 20

約数和(自身を含む): 41568768

約数和(自身を除く): 20150960

約数列:

[1, 2, 4, 8, 16, 1151, 1163, 2302, 2326, 4604, 4652, 9208, 9304, 18416, 18608, 1338613, 2677226, 5354452, 10708904, 21417808]

約数ペア:

[(1, 21417808), (2, 10708904), (4, 5354452), (8, 2677226), (16, 1338613), (1151, 18608), (1163, 18416), (2302, 9304), (2326, 9208), (4604, 4652)]