205654617

素因数分解:

$3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{5903}}^1$

素因数の和:6002

約数の個数: 36

約数和(自身を含む): 349989120

約数和(自身を除く): 144334503

約数列:

[1, 3, 7, 9, 21, 49, 63, 79, 147, 237, 441, 553, 711, 1659, 3871, 4977, 5903, 11613, 17709, 34839, 41321, 53127, 123963, 289247, 371889, 466337, 867741, 1399011, 2603223, 3264359, 4197033, 9793077, 22850513, 29379231, 68551539, 205654617]

約数ペア:

[(1, 205654617), (3, 68551539), (7, 29379231), (9, 22850513), (21, 9793077), (49, 4197033), (63, 3264359), (79, 2603223), (147, 1399011), (237, 867741), (441, 466337), (553, 371889), (711, 289247), (1659, 123963), (3871, 53127), (4977, 41321), (5903, 34839), (11613, 17709)]