19932451

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 25395552

約数和(自身を除く): 5463101

約数列:

[1, 7, 11, 77, 101, 121, 233, 707, 847, 1111, 1631, 2563, 7777, 12221, 17941, 23533, 28193, 85547, 164731, 197351, 258863, 1812041, 2847493, 19932451]

約数ペア:

[(1, 19932451), (7, 2847493), (11, 1812041), (77, 258863), (101, 197351), (121, 164731), (233, 85547), (707, 28193), (847, 23533), (1111, 17941), (1631, 12221), (2563, 7777)]