1285291287

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{128311}}^1$

素因数の和:128380

約数の個数: 32

約数和(自身を含む): 2217231360

約数和(自身を除く): 931940073

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 3339, 10017, 128311, 384933, 898177, 1154799, 2694531, 3464397, 6800483, 8083593, 20401449, 24250779, 47603381, 61204347, 142810143, 183613041, 428430429, 1285291287]

約数ペア:

[(1, 1285291287), (3, 428430429), (7, 183613041), (9, 142810143), (21, 61204347), (27, 47603381), (53, 24250779), (63, 20401449), (159, 8083593), (189, 6800483), (371, 3464397), (477, 2694531), (1113, 1154799), (1431, 898177), (3339, 384933), (10017, 128311)]