19924695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1532

約数の個数: 48

約数和(自身を含む): 40415232

約数和(自身を除く): 20490537

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1471, 1505, 1935, 2709, 4413, 4515, 7355, 10297, 13239, 13545, 22065, 30891, 51485, 63253, 66195, 92673, 154455, 189759, 316265, 442771, 463365, 569277, 948795, 1328313, 2213855, 2846385, 3984939, 6641565, 19924695]

約数ペア:

[(1, 19924695), (3, 6641565), (5, 3984939), (7, 2846385), (9, 2213855), (15, 1328313), (21, 948795), (35, 569277), (43, 463365), (45, 442771), (63, 316265), (105, 189759), (129, 154455), (215, 92673), (301, 66195), (315, 63253), (387, 51485), (645, 30891), (903, 22065), (1471, 13545), (1505, 13239), (1935, 10297), (2709, 7355), (4413, 4515)]