18851895

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1$

素因数の和:1344

約数の個数: 48

約数和(自身を含む): 36447840

約数和(自身を除く): 17595945

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1297, 1615, 2907, 3891, 4845, 6485, 11673, 14535, 19455, 22049, 24643, 58365, 66147, 73929, 110245, 123215, 198441, 221787, 330735, 369645, 418931, 992205, 1108935, 1256793, 2094655, 3770379, 6283965, 18851895]

約数ペア:

[(1, 18851895), (3, 6283965), (5, 3770379), (9, 2094655), (15, 1256793), (17, 1108935), (19, 992205), (45, 418931), (51, 369645), (57, 330735), (85, 221787), (95, 198441), (153, 123215), (171, 110245), (255, 73929), (285, 66147), (323, 58365), (765, 24643), (855, 22049), (969, 19455), (1297, 14535), (1615, 11673), (2907, 6485), (3891, 4845)]