42140979

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{2333}}^1$

素因数の和:2568

約数の個数: 20

約数和(自身を含む): 63260736

約数和(自身を除く): 21119757

約数列:

[1, 3, 9, 27, 81, 223, 669, 2007, 2333, 6021, 6999, 18063, 20997, 62991, 188973, 520259, 1560777, 4682331, 14046993, 42140979]

約数ペア:

[(1, 42140979), (3, 14046993), (9, 4682331), (27, 1560777), (81, 520259), (223, 188973), (669, 62991), (2007, 20997), (2333, 18063), (6021, 6999)]