17721045

素因数分解:

$3^3\times 5^1\times {\mathrm{131267}}^1$

素因数の和:131281

約数の個数: 16

約数和(自身を含む): 31504320

約数和(自身を除く): 13783275

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 131267, 393801, 656335, 1181403, 1969005, 3544209, 5907015, 17721045]

約数ペア:

[(1, 17721045), (3, 5907015), (5, 3544209), (9, 1969005), (15, 1181403), (27, 656335), (45, 393801), (135, 131267)]