18580772511

素因数分解:

$3^2\times 7^2\times {\mathrm{42133271}}^1$

素因数の和:42133291

約数の個数: 18

約数和(自身を含む): 31220754552

約数和(自身を除く): 12639982041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 42133271, 126399813, 294932897, 379199439, 884798691, 2064530279, 2654396073, 6193590837, 18580772511]

約数ペア:

[(1, 18580772511), (3, 6193590837), (7, 2654396073), (9, 2064530279), (21, 884798691), (49, 379199439), (63, 294932897), (147, 126399813), (441, 42133271)]