28912815

素因数分解:

$3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2711}}^1$

素因数の和:2804

約数の個数: 32

約数和(自身を含む): 52070400

約数和(自身を除く): 23157585

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 135, 237, 395, 711, 1185, 2133, 2711, 3555, 8133, 10665, 13555, 24399, 40665, 73197, 121995, 214169, 365985, 642507, 1070845, 1927521, 3212535, 5782563, 9637605, 28912815]

約数ペア:

[(1, 28912815), (3, 9637605), (5, 5782563), (9, 3212535), (15, 1927521), (27, 1070845), (45, 642507), (79, 365985), (135, 214169), (237, 121995), (395, 73197), (711, 40665), (1185, 24399), (2133, 13555), (2711, 10665), (3555, 8133)]