18804825

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2143}}^1$

素因数の和:2175

約数の個数: 48

約数和(自身を含む): 37219840

約数和(自身を除く): 18415015

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2143, 2925, 6429, 8775, 10715, 19287, 27859, 32145, 53575, 57861, 83577, 96435, 139295, 160725, 250731, 289305, 417885, 482175, 696475, 752193, 1253655, 1446525, 2089425, 3760965, 6268275, 18804825]

約数ペア:

[(1, 18804825), (3, 6268275), (5, 3760965), (9, 2089425), (13, 1446525), (15, 1253655), (25, 752193), (27, 696475), (39, 482175), (45, 417885), (65, 289305), (75, 250731), (117, 160725), (135, 139295), (195, 96435), (225, 83577), (325, 57861), (351, 53575), (585, 32145), (675, 27859), (975, 19287), (1755, 10715), (2143, 8775), (2925, 6429)]