19181379

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{263}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 30818304

約数和(自身を除く): 11636925

約数列:

[1, 3, 7, 21, 23, 69, 151, 161, 263, 453, 483, 789, 1057, 1841, 3171, 3473, 5523, 6049, 10419, 18147, 24311, 39713, 42343, 72933, 119139, 127029, 277991, 833973, 913399, 2740197, 6393793, 19181379]

約数ペア:

[(1, 19181379), (3, 6393793), (7, 2740197), (21, 913399), (23, 833973), (69, 277991), (151, 127029), (161, 119139), (263, 72933), (453, 42343), (483, 39713), (789, 24311), (1057, 18147), (1841, 10419), (3171, 6049), (3473, 5523)]