2001915

素因数分解:

$3^4\times 5^1\times {\mathrm{4943}}^1$

素因数の和:4960

約数の個数: 20

約数和(自身を含む): 3589344

約数和(自身を除く): 1587429

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4943, 14829, 24715, 44487, 74145, 133461, 222435, 400383, 667305, 2001915]

約数ペア:

[(1, 2001915), (3, 667305), (5, 400383), (9, 222435), (15, 133461), (27, 74145), (45, 44487), (81, 24715), (135, 14829), (405, 4943)]