20418966

素因数分解:

$2^1\times 3^4\times {\mathrm{241}}^1\times {\mathrm{523}}^1$

素因数の和:778

約数の個数: 40

約数和(自身を含む): 46031304

約数和(自身を除く): 25612338

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 241, 482, 523, 723, 1046, 1446, 1569, 2169, 3138, 4338, 4707, 6507, 9414, 13014, 14121, 19521, 28242, 39042, 42363, 84726, 126043, 252086, 378129, 756258, 1134387, 2268774, 3403161, 6806322, 10209483, 20418966]

約数ペア:

[(1, 20418966), (2, 10209483), (3, 6806322), (6, 3403161), (9, 2268774), (18, 1134387), (27, 756258), (54, 378129), (81, 252086), (162, 126043), (241, 84726), (482, 42363), (523, 39042), (723, 28242), (1046, 19521), (1446, 14121), (1569, 13014), (2169, 9414), (3138, 6507), (4338, 4707)]