19661490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{218461}}^1$

素因数の和:218474

約数の個数: 24

約数和(自身を含む): 51120108

約数和(自身を除く): 31458618

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 218461, 436922, 655383, 1092305, 1310766, 1966149, 2184610, 3276915, 3932298, 6553830, 9830745, 19661490]

約数ペア:

[(1, 19661490), (2, 9830745), (3, 6553830), (5, 3932298), (6, 3276915), (9, 2184610), (10, 1966149), (15, 1310766), (18, 1092305), (30, 655383), (45, 436922), (90, 218461)]