15421905

素因数分解:

$3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{881}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 26830440

約数和(自身を除く): 11408535

約数列:

[1, 3, 5, 9, 15, 45, 389, 881, 1167, 1945, 2643, 3501, 4405, 5835, 7929, 13215, 17505, 39645, 342709, 1028127, 1713545, 3084381, 5140635, 15421905]

約数ペア:

[(1, 15421905), (3, 5140635), (5, 3084381), (9, 1713545), (15, 1028127), (45, 342709), (389, 39645), (881, 17505), (1167, 13215), (1945, 7929), (2643, 5835), (3501, 4405)]