12974895

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 23721984

約数和(自身を除く): 10747089

約数列:

[1, 3, 5, 9, 15, 31, 45, 71, 93, 131, 155, 213, 279, 355, 393, 465, 639, 655, 1065, 1179, 1395, 1965, 2201, 3195, 4061, 5895, 6603, 9301, 11005, 12183, 19809, 20305, 27903, 33015, 36549, 46505, 60915, 83709, 99045, 139515, 182745, 288331, 418545, 864993, 1441655, 2594979, 4324965, 12974895]

約数ペア:

[(1, 12974895), (3, 4324965), (5, 2594979), (9, 1441655), (15, 864993), (31, 418545), (45, 288331), (71, 182745), (93, 139515), (131, 99045), (155, 83709), (213, 60915), (279, 46505), (355, 36549), (393, 33015), (465, 27903), (639, 20305), (655, 19809), (1065, 12183), (1179, 11005), (1395, 9301), (1965, 6603), (2201, 5895), (3195, 4061)]