21161538

素因数分解:

$2^1\times 3^2\times {\mathrm{239}}^1\times {\mathrm{4919}}^1$

素因数の和:5166

約数の個数: 24

約数和(自身を含む): 46051200

約数和(自身を除く): 24889662

約数列:

[1, 2, 3, 6, 9, 18, 239, 478, 717, 1434, 2151, 4302, 4919, 9838, 14757, 29514, 44271, 88542, 1175641, 2351282, 3526923, 7053846, 10580769, 21161538]

約数ペア:

[(1, 21161538), (2, 10580769), (3, 7053846), (6, 3526923), (9, 2351282), (18, 1175641), (239, 88542), (478, 44271), (717, 29514), (1434, 14757), (2151, 9838), (4302, 4919)]