1690686

素因数分解:

$2^1\times 3^3\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 3801600

約数和(自身を除く): 2110914

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 131, 239, 262, 393, 478, 717, 786, 1179, 1434, 2151, 2358, 3537, 4302, 6453, 7074, 12906, 31309, 62618, 93927, 187854, 281781, 563562, 845343, 1690686]

約数ペア:

[(1, 1690686), (2, 845343), (3, 563562), (6, 281781), (9, 187854), (18, 93927), (27, 62618), (54, 31309), (131, 12906), (239, 7074), (262, 6453), (393, 4302), (478, 3537), (717, 2358), (786, 2151), (1179, 1434)]