21000404895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82354529}}^1$

素因数の和:82354554

約数の個数: 16

約数和(自身を含む): 35577156960

約数和(自身を除く): 14576752065

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82354529, 247063587, 411772645, 1235317935, 1400026993, 4200080979, 7000134965, 21000404895]

約数ペア:

[(1, 21000404895), (3, 7000134965), (5, 4200080979), (15, 1400026993), (17, 1235317935), (51, 411772645), (85, 247063587), (255, 82354529)]