21000859204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1171}}^1\times {\mathrm{344887}}^1$

素因数の和:346075

約数の個数: 24

約数和(自身を含む): 39612456128

約数和(自身を除く): 18611596924

約数列:

[1, 2, 4, 13, 26, 52, 1171, 2342, 4684, 15223, 30446, 60892, 344887, 689774, 1379548, 4483531, 8967062, 17934124, 403862677, 807725354, 1615450708, 5250214801, 10500429602, 21000859204]

約数ペア:

[(1, 21000859204), (2, 10500429602), (4, 5250214801), (13, 1615450708), (26, 807725354), (52, 403862677), (1171, 17934124), (2342, 8967062), (4684, 4483531), (15223, 1379548), (30446, 689774), (60892, 344887)]