18714507

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 29663232

約数和(自身を除く): 10948725

約数列:

[1, 3, 7, 21, 47, 67, 141, 201, 283, 329, 469, 849, 987, 1407, 1981, 3149, 5943, 9447, 13301, 18961, 22043, 39903, 56883, 66129, 93107, 132727, 279321, 398181, 891167, 2673501, 6238169, 18714507]

約数ペア:

[(1, 18714507), (3, 6238169), (7, 2673501), (21, 891167), (47, 398181), (67, 279321), (141, 132727), (201, 93107), (283, 66129), (329, 56883), (469, 39903), (849, 22043), (987, 18961), (1407, 13301), (1981, 9447), (3149, 5943)]