19887363

素因数分解:

$3^5\times {\mathrm{223}}^1\times {\mathrm{367}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 30005248

約数和(自身を除く): 10117885

約数列:

[1, 3, 9, 27, 81, 223, 243, 367, 669, 1101, 2007, 3303, 6021, 9909, 18063, 29727, 54189, 81841, 89181, 245523, 736569, 2209707, 6629121, 19887363]

約数ペア:

[(1, 19887363), (3, 6629121), (9, 2209707), (27, 736569), (81, 245523), (223, 89181), (243, 81841), (367, 54189), (669, 29727), (1101, 18063), (2007, 9909), (3303, 6021)]