21570111

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{2213}}^1$

素因数の和:2260

約数の個数: 24

約数和(自身を含む): 33741360

約数和(自身を除く): 12171249

約数列:

[1, 3, 9, 19, 27, 57, 171, 361, 513, 1083, 2213, 3249, 6639, 9747, 19917, 42047, 59751, 126141, 378423, 798893, 1135269, 2396679, 7190037, 21570111]

約数ペア:

[(1, 21570111), (3, 7190037), (9, 2396679), (19, 1135269), (27, 798893), (57, 378423), (171, 126141), (361, 59751), (513, 42047), (1083, 19917), (2213, 9747), (3249, 6639)]