19218409

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1511}}^1$

素因数の和:1620

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 4005911

約数列:

[1, 7, 23, 79, 161, 553, 1511, 1817, 10577, 12719, 34753, 119369, 243271, 835583, 2745487, 19218409]

約数ペア:

[(1, 19218409), (7, 2745487), (23, 835583), (79, 243271), (161, 119369), (553, 34753), (1511, 12719), (1817, 10577)]