18782145

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{263}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 35038080

約数和(自身を除く): 16255935

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 263, 345, 529, 621, 789, 1035, 1315, 1587, 2367, 2645, 3105, 3945, 4761, 6049, 7101, 7935, 11835, 14283, 18147, 23805, 30245, 35505, 54441, 71415, 90735, 139127, 163323, 272205, 417381, 695635, 816615, 1252143, 2086905, 3756429, 6260715, 18782145]

約数ペア:

[(1, 18782145), (3, 6260715), (5, 3756429), (9, 2086905), (15, 1252143), (23, 816615), (27, 695635), (45, 417381), (69, 272205), (115, 163323), (135, 139127), (207, 90735), (263, 71415), (345, 54441), (529, 35505), (621, 30245), (789, 23805), (1035, 18147), (1315, 14283), (1587, 11835), (2367, 7935), (2645, 7101), (3105, 6049), (3945, 4761)]