28907295

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27143}}^1$

素因数の和:27222

約数の個数: 16

約数和(自身を含む): 46904832

約数和(自身を除く): 17997537

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 27143, 81429, 135715, 407145, 1927153, 5781459, 9635765, 28907295]

約数ペア:

[(1, 28907295), (3, 9635765), (5, 5781459), (15, 1927153), (71, 407145), (213, 135715), (355, 81429), (1065, 27143)]