19777930

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{85991}}^1$

素因数の和:86021

約数の個数: 16

約数和(自身を含む): 37148544

約数和(自身を除く): 17370614

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 85991, 171982, 429955, 859910, 1977793, 3955586, 9888965, 19777930]

約数ペア:

[(1, 19777930), (2, 9888965), (5, 3955586), (10, 1977793), (23, 859910), (46, 429955), (115, 171982), (230, 85991)]