221569390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{20161}}^1$

素因数の和:20332

約数の個数: 32

約数和(自身を含む): 458725824

約数和(自身を除く): 237156434

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 2198, 5495, 10990, 20161, 40322, 100805, 141127, 201610, 282254, 705635, 1411270, 3165277, 6330554, 15826385, 22156939, 31652770, 44313878, 110784695, 221569390]

約数ペア:

[(1, 221569390), (2, 110784695), (5, 44313878), (7, 31652770), (10, 22156939), (14, 15826385), (35, 6330554), (70, 3165277), (157, 1411270), (314, 705635), (785, 282254), (1099, 201610), (1570, 141127), (2198, 100805), (5495, 40322), (10990, 20161)]