20506216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1151}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 20551064

約数列:

[1, 2, 4, 8, 17, 34, 68, 131, 136, 262, 524, 1048, 1151, 2227, 2302, 4454, 4604, 8908, 9208, 17816, 19567, 39134, 78268, 150781, 156536, 301562, 603124, 1206248, 2563277, 5126554, 10253108, 20506216]

約数ペア:

[(1, 20506216), (2, 10253108), (4, 5126554), (8, 2563277), (17, 1206248), (34, 603124), (68, 301562), (131, 156536), (136, 150781), (262, 78268), (524, 39134), (1048, 19567), (1151, 17816), (2227, 9208), (2302, 8908), (4454, 4604)]