21393846

素因数分解:

$2^1\times 3^2\times {\mathrm{239}}^1\times {\mathrm{4973}}^1$

素因数の和:5220

約数の個数: 24

約数和(自身を含む): 46556640

約数和(自身を除く): 25162794

約数列:

[1, 2, 3, 6, 9, 18, 239, 478, 717, 1434, 2151, 4302, 4973, 9946, 14919, 29838, 44757, 89514, 1188547, 2377094, 3565641, 7131282, 10696923, 21393846]

約数ペア:

[(1, 21393846), (2, 10696923), (3, 7131282), (6, 3565641), (9, 2377094), (18, 1188547), (239, 89514), (478, 44757), (717, 29838), (1434, 14919), (2151, 9946), (4302, 4973)]