18914985

素因数分解:

$3^3\times 5^1\times {\mathrm{140111}}^1$

素因数の和:140125

約数の個数: 16

約数和(自身を含む): 33626880

約数和(自身を除く): 14711895

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140111, 420333, 700555, 1260999, 2101665, 3782997, 6304995, 18914985]

約数ペア:

[(1, 18914985), (3, 6304995), (5, 3782997), (9, 2101665), (15, 1260999), (27, 700555), (45, 420333), (135, 140111)]