12928815

素因数分解:

$3^6\times 5^1\times {\mathrm{3547}}^1$

素因数の和:3570

約数の個数: 28

約数和(自身を含む): 23267784

約数和(自身を除く): 10338969

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3547, 3645, 10641, 17735, 31923, 53205, 95769, 159615, 287307, 478845, 861921, 1436535, 2585763, 4309605, 12928815]

約数ペア:

[(1, 12928815), (3, 4309605), (5, 2585763), (9, 1436535), (15, 861921), (27, 478845), (45, 287307), (81, 159615), (135, 95769), (243, 53205), (405, 31923), (729, 17735), (1215, 10641), (3547, 3645)]