15985809

素因数分解:

$3^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 28290240

約数和(自身を除く): 12304431

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 281, 301, 387, 441, 843, 903, 1161, 1323, 1967, 2107, 2529, 2709, 5901, 6321, 7587, 8127, 12083, 13769, 17703, 18963, 36249, 41307, 53109, 56889, 84581, 108747, 123921, 253743, 326241, 371763, 592067, 761229, 1776201, 2283687, 5328603, 15985809]

約数ペア:

[(1, 15985809), (3, 5328603), (7, 2283687), (9, 1776201), (21, 761229), (27, 592067), (43, 371763), (49, 326241), (63, 253743), (129, 123921), (147, 108747), (189, 84581), (281, 56889), (301, 53109), (387, 41307), (441, 36249), (843, 18963), (903, 17703), (1161, 13769), (1323, 12083), (1967, 8127), (2107, 7587), (2529, 6321), (2709, 5901)]