19919973

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{2281}}^1$

素因数の和:2396

約数の個数: 16

約数和(自身を含む): 27603072

約数和(自身を除く): 7683099

約数列:

[1, 3, 41, 71, 123, 213, 2281, 2911, 6843, 8733, 93521, 161951, 280563, 485853, 6639991, 19919973]

約数ペア:

[(1, 19919973), (3, 6639991), (41, 485853), (71, 280563), (123, 161951), (213, 93521), (2281, 8733), (2911, 6843)]