19773591551

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1\times {\mathrm{569}}^1$

素因数の和:1143

約数の個数: 32

約数和(自身を含む): 23078415360

約数和(自身を除く): 3304823809

約数列:

[1, 7, 103, 157, 307, 569, 721, 1099, 2149, 3983, 16171, 31621, 48199, 58607, 89333, 113197, 174683, 221347, 337393, 410249, 625331, 1222781, 4964497, 9201299, 17992349, 27425231, 34751479, 64409093, 125946443, 191976617, 2824798793, 19773591551]

約数ペア:

[(1, 19773591551), (7, 2824798793), (103, 191976617), (157, 125946443), (307, 64409093), (569, 34751479), (721, 27425231), (1099, 17992349), (2149, 9201299), (3983, 4964497), (16171, 1222781), (31621, 625331), (48199, 410249), (58607, 337393), (89333, 221347), (113197, 174683)]