19864595

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{991}}^1$

素因数の和:1226

約数の個数: 16

約数和(自身を含む): 25236480

約数和(自身を除く): 5371885

約数列:

[1, 5, 19, 95, 211, 991, 1055, 4009, 4955, 18829, 20045, 94145, 209101, 1045505, 3972919, 19864595]

約数ペア:

[(1, 19864595), (5, 3972919), (19, 1045505), (95, 209101), (211, 94145), (991, 20045), (1055, 18829), (4009, 4955)]