19907164

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 35532000

約数和(自身を除く): 15624836

約数列:

[1, 2, 4, 89, 178, 199, 281, 356, 398, 562, 796, 1124, 17711, 25009, 35422, 50018, 55919, 70844, 100036, 111838, 223676, 4976791, 9953582, 19907164]

約数ペア:

[(1, 19907164), (2, 9953582), (4, 4976791), (89, 223676), (178, 111838), (199, 100036), (281, 70844), (356, 55919), (398, 50018), (562, 35422), (796, 25009), (1124, 17711)]