21183021

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{293}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 31875480

約数和(自身を除く): 10692459

約数列:

[1, 3, 9, 29, 87, 261, 277, 293, 831, 879, 2493, 2637, 8033, 8497, 24099, 25491, 72297, 76473, 81161, 243483, 730449, 2353669, 7061007, 21183021]

約数ペア:

[(1, 21183021), (3, 7061007), (9, 2353669), (29, 730449), (87, 243483), (261, 81161), (277, 76473), (293, 72297), (831, 25491), (879, 24099), (2493, 8497), (2637, 8033)]