30981609

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 50006880

約数和(自身を除く): 19025271

約数列:

[1, 3, 9, 19, 27, 41, 57, 81, 123, 171, 369, 491, 513, 779, 1107, 1473, 1539, 2337, 3321, 4419, 7011, 9329, 13257, 20131, 21033, 27987, 39771, 60393, 63099, 83961, 181179, 251883, 382489, 543537, 755649, 1147467, 1630611, 3442401, 10327203, 30981609]

約数ペア:

[(1, 30981609), (3, 10327203), (9, 3442401), (19, 1630611), (27, 1147467), (41, 755649), (57, 543537), (81, 382489), (123, 251883), (171, 181179), (369, 83961), (491, 63099), (513, 60393), (779, 39771), (1107, 27987), (1473, 21033), (1539, 20131), (2337, 13257), (3321, 9329), (4419, 7011)]