81823581

素因数分解:

$3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2689}}^1$

素因数の和:2735

約数の個数: 48

約数和(自身を含む): 147196800

約数和(自身を除く): 65373219

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 441, 483, 621, 1127, 1323, 1449, 2689, 3381, 4347, 8067, 10143, 18823, 24201, 30429, 56469, 61847, 72603, 131761, 169407, 185541, 395283, 432929, 508221, 556623, 1185849, 1298787, 1669869, 3030503, 3557547, 3896361, 9091509, 11689083, 27274527, 81823581]

約数ペア:

[(1, 81823581), (3, 27274527), (7, 11689083), (9, 9091509), (21, 3896361), (23, 3557547), (27, 3030503), (49, 1669869), (63, 1298787), (69, 1185849), (147, 556623), (161, 508221), (189, 432929), (207, 395283), (441, 185541), (483, 169407), (621, 131761), (1127, 72603), (1323, 61847), (1449, 56469), (2689, 30429), (3381, 24201), (4347, 18823), (8067, 10143)]