21870196

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 39079040

約数和(自身を除く): 17208844

約数列:

[1, 2, 4, 103, 109, 206, 218, 412, 436, 487, 974, 1948, 11227, 22454, 44908, 50161, 53083, 100322, 106166, 200644, 212332, 5467549, 10935098, 21870196]

約数ペア:

[(1, 21870196), (2, 10935098), (4, 5467549), (103, 212332), (109, 200644), (206, 106166), (218, 100322), (412, 53083), (436, 50161), (487, 44908), (974, 22454), (1948, 11227)]