19378779

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{11681}}^1$

素因数の和:11770

約数の個数: 16

約数和(自身を含む): 29905920

約数和(自身を除く): 10527141

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 11681, 35043, 81767, 245301, 922799, 2768397, 6459593, 19378779]

約数ペア:

[(1, 19378779), (3, 6459593), (7, 2768397), (21, 922799), (79, 245301), (237, 81767), (553, 35043), (1659, 11681)]