21931815

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2281}}^1$

素因数の和:2930

約数の個数: 16

約数和(自身を含む): 35161056

約数和(自身を除く): 13229241

約数列:

[1, 3, 5, 15, 641, 1923, 2281, 3205, 6843, 9615, 11405, 34215, 1462121, 4386363, 7310605, 21931815]

約数ペア:

[(1, 21931815), (3, 7310605), (5, 4386363), (15, 1462121), (641, 34215), (1923, 11405), (2281, 9615), (3205, 6843)]