291250071

素因数分解:

$3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 506666160

約数和(自身を除く): 215416089

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 83, 109, 147, 219, 249, 327, 441, 511, 581, 657, 747, 763, 981, 1533, 1743, 2289, 3577, 4067, 4599, 5229, 5341, 6059, 6867, 7957, 9047, 10731, 12201, 16023, 18177, 23871, 27141, 32193, 36603, 42413, 48069, 54531, 55699, 63329, 71613, 81423, 127239, 167097, 189987, 296891, 381717, 389893, 443303, 501291, 569961, 660431, 890673, 1169679, 1329909, 1981293, 2672019, 3509037, 3989727, 4623017, 5943879, 13869051, 32361119, 41607153, 97083357, 291250071]

約数ペア:

[(1, 291250071), (3, 97083357), (7, 41607153), (9, 32361119), (21, 13869051), (49, 5943879), (63, 4623017), (73, 3989727), (83, 3509037), (109, 2672019), (147, 1981293), (219, 1329909), (249, 1169679), (327, 890673), (441, 660431), (511, 569961), (581, 501291), (657, 443303), (747, 389893), (763, 381717), (981, 296891), (1533, 189987), (1743, 167097), (2289, 127239), (3577, 81423), (4067, 71613), (4599, 63329), (5229, 55699), (5341, 54531), (6059, 48069), (6867, 42413), (7957, 36603), (9047, 32193), (10731, 27141), (12201, 23871), (16023, 18177)]