31212909

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1657}}^1$

素因数の和:1706

約数の個数: 48

約数和(自身を含む): 57937152

約数和(自身を除く): 26724243

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 207, 273, 299, 483, 819, 897, 1449, 1657, 2093, 2691, 4971, 6279, 11599, 14913, 18837, 21541, 34797, 38111, 64623, 104391, 114333, 150787, 193869, 266777, 342999, 452361, 495443, 800331, 1357083, 1486329, 2400993, 3468101, 4458987, 10404303, 31212909]

約数ペア:

[(1, 31212909), (3, 10404303), (7, 4458987), (9, 3468101), (13, 2400993), (21, 1486329), (23, 1357083), (39, 800331), (63, 495443), (69, 452361), (91, 342999), (117, 266777), (161, 193869), (207, 150787), (273, 114333), (299, 104391), (483, 64623), (819, 38111), (897, 34797), (1449, 21541), (1657, 18837), (2093, 14913), (2691, 11599), (4971, 6279)]