18684999

素因数分解:

$3^6\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 42

約数和(自身を含む): 29983176

約数和(自身を除く): 11298177

約数列:

[1, 3, 9, 19, 27, 57, 71, 81, 171, 213, 243, 361, 513, 639, 729, 1083, 1349, 1539, 1917, 3249, 4047, 4617, 5751, 9747, 12141, 13851, 17253, 25631, 29241, 36423, 51759, 76893, 87723, 109269, 230679, 263169, 327807, 692037, 983421, 2076111, 6228333, 18684999]

約数ペア:

[(1, 18684999), (3, 6228333), (9, 2076111), (19, 983421), (27, 692037), (57, 327807), (71, 263169), (81, 230679), (171, 109269), (213, 87723), (243, 76893), (361, 51759), (513, 36423), (639, 29241), (729, 25631), (1083, 17253), (1349, 13851), (1539, 12141), (1917, 9747), (3249, 5751), (4047, 4617)]