18538029

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 27623232

約数和(自身を除く): 9085203

約数列:

[1, 3, 9, 67, 71, 201, 213, 433, 603, 639, 1299, 3897, 4757, 14271, 29011, 30743, 42813, 87033, 92229, 261099, 276687, 2059781, 6179343, 18538029]

約数ペア:

[(1, 18538029), (3, 6179343), (9, 2059781), (67, 276687), (71, 261099), (201, 92229), (213, 87033), (433, 42813), (603, 30743), (639, 29011), (1299, 14271), (3897, 4757)]