18431985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{661}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 34890048

約数和(自身を除く): 16458063

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 169, 195, 429, 507, 661, 715, 845, 1859, 1983, 2145, 2535, 3305, 5577, 7271, 8593, 9295, 9915, 21813, 25779, 27885, 36355, 42965, 94523, 109065, 111709, 128895, 283569, 335127, 472615, 558545, 1228799, 1417845, 1675635, 3686397, 6143995, 18431985]

約数ペア:

[(1, 18431985), (3, 6143995), (5, 3686397), (11, 1675635), (13, 1417845), (15, 1228799), (33, 558545), (39, 472615), (55, 335127), (65, 283569), (143, 128895), (165, 111709), (169, 109065), (195, 94523), (429, 42965), (507, 36355), (661, 27885), (715, 25779), (845, 21813), (1859, 9915), (1983, 9295), (2145, 8593), (2535, 7271), (3305, 5577)]