19938191

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1451}}^1$

素因数の和:1622

約数の個数: 16

約数和(自身を含む): 24718848

約数和(自身を除く): 4780657

約数列:

[1, 7, 13, 91, 151, 1057, 1451, 1963, 10157, 13741, 18863, 132041, 219101, 1533707, 2848313, 19938191]

約数ペア:

[(1, 19938191), (7, 2848313), (13, 1533707), (91, 219101), (151, 132041), (1057, 18863), (1451, 13741), (1963, 10157)]