20687558331

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{36637}}^1$

素因数の和:36963

約数の個数: 32

約数和(自身を含む): 30642264576

約数和(自身を除く): 9954706245

約数列:

[1, 3, 11, 33, 71, 213, 241, 723, 781, 2343, 2651, 7953, 17111, 36637, 51333, 109911, 188221, 403007, 564663, 1209021, 2601227, 7803681, 8829517, 26488551, 28613497, 85840491, 97124687, 291374061, 626895707, 1880687121, 6895852777, 20687558331]

約数ペア:

[(1, 20687558331), (3, 6895852777), (11, 1880687121), (33, 626895707), (71, 291374061), (213, 97124687), (241, 85840491), (723, 28613497), (781, 26488551), (2343, 8829517), (2651, 7803681), (7953, 2601227), (17111, 1209021), (36637, 564663), (51333, 403007), (109911, 188221)]