20278315673

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1\times {\mathrm{1493}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 26095136256

約数和(自身を除く): 5816820583

約数列:

[1, 7, 11, 49, 77, 113, 223, 539, 791, 1243, 1493, 1561, 2453, 5537, 8701, 10451, 10927, 16423, 17171, 25199, 60907, 73157, 114961, 120197, 168709, 176393, 277189, 332939, 804727, 1180963, 1234751, 1855799, 1940323, 2330573, 3662329, 8266741, 12990593, 13582261, 16314011, 25636303, 37622107, 90934151, 179454121, 263354749, 413843177, 1843483243, 2896902239, 20278315673]

約数ペア:

[(1, 20278315673), (7, 2896902239), (11, 1843483243), (49, 413843177), (77, 263354749), (113, 179454121), (223, 90934151), (539, 37622107), (791, 25636303), (1243, 16314011), (1493, 13582261), (1561, 12990593), (2453, 8266741), (5537, 3662329), (8701, 2330573), (10451, 1940323), (10927, 1855799), (16423, 1234751), (17171, 1180963), (25199, 804727), (60907, 332939), (73157, 277189), (114961, 176393), (120197, 168709)]