19681290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{218681}}^1$

素因数の和:218694

約数の個数: 24

約数和(自身を含む): 51171588

約数和(自身を除く): 31490298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 218681, 437362, 656043, 1093405, 1312086, 1968129, 2186810, 3280215, 3936258, 6560430, 9840645, 19681290]

約数ペア:

[(1, 19681290), (2, 9840645), (3, 6560430), (5, 3936258), (6, 3280215), (9, 2186810), (10, 1968129), (15, 1312086), (18, 1093405), (30, 656043), (45, 437362), (90, 218681)]