21527740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82799}}^1$

素因数の和:82821

約数の個数: 24

約数和(自身を含む): 48686400

約数和(自身を除く): 27158660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 82799, 165598, 331196, 413995, 827990, 1076387, 1655980, 2152774, 4305548, 5381935, 10763870, 21527740]

約数ペア:

[(1, 21527740), (2, 10763870), (4, 5381935), (5, 4305548), (10, 2152774), (13, 1655980), (20, 1076387), (26, 827990), (52, 413995), (65, 331196), (130, 165598), (260, 82799)]