21648115

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{541}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 26692416

約数和(自身を除く): 5044301

約数列:

[1, 5, 53, 151, 265, 541, 755, 2705, 8003, 28673, 40015, 81691, 143365, 408455, 4329623, 21648115]

約数ペア:

[(1, 21648115), (5, 4329623), (53, 408455), (151, 143365), (265, 81691), (541, 40015), (755, 28673), (2705, 8003)]