19698021

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1637}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 32707584

約数和(自身を除く): 13009563

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1637, 1719, 4011, 4911, 11459, 12033, 14733, 34377, 103131, 312667, 938001, 2188669, 2814003, 6566007, 19698021]

約数ペア:

[(1, 19698021), (3, 6566007), (7, 2814003), (9, 2188669), (21, 938001), (63, 312667), (191, 103131), (573, 34377), (1337, 14733), (1637, 12033), (1719, 11459), (4011, 4911)]