21286995

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34613}}^1$

素因数の和:34662

約数の個数: 16

約数和(自身を含む): 34890912

約数和(自身を除く): 13603917

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34613, 103839, 173065, 519195, 1419133, 4257399, 7095665, 21286995]

約数ペア:

[(1, 21286995), (3, 7095665), (5, 4257399), (15, 1419133), (41, 519195), (123, 173065), (205, 103839), (615, 34613)]