18477747

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 29120000

約数和(自身を除く): 10642253

約数列:

[1, 3, 9, 19, 27, 57, 171, 181, 199, 513, 543, 597, 1629, 1791, 3439, 3781, 4887, 5373, 10317, 11343, 30951, 34029, 36019, 92853, 102087, 108057, 324171, 684361, 972513, 2053083, 6159249, 18477747]

約数ペア:

[(1, 18477747), (3, 6159249), (9, 2053083), (19, 972513), (27, 684361), (57, 324171), (171, 108057), (181, 102087), (199, 92853), (513, 36019), (543, 34029), (597, 30951), (1629, 11343), (1791, 10317), (3439, 5373), (3781, 4887)]