18287937

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 30663360

約数和(自身を除く): 12375423

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 233, 243, 323, 459, 513, 699, 969, 1377, 1539, 2097, 2907, 3961, 4131, 4427, 4617, 6291, 8721, 11883, 13281, 18873, 26163, 35649, 39843, 56619, 75259, 78489, 106947, 119529, 225777, 320841, 358587, 677331, 962523, 1075761, 2031993, 6095979, 18287937]

約数ペア:

[(1, 18287937), (3, 6095979), (9, 2031993), (17, 1075761), (19, 962523), (27, 677331), (51, 358587), (57, 320841), (81, 225777), (153, 119529), (171, 106947), (233, 78489), (243, 75259), (323, 56619), (459, 39843), (513, 35649), (699, 26163), (969, 18873), (1377, 13281), (1539, 11883), (2097, 8721), (2907, 6291), (3961, 4617), (4131, 4427)]