638963967

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1\times {\mathrm{10667}}^1$

素因数の和:11198

約数の個数: 16

約数和(自身を含む): 874605312

約数和(自身を除く): 235641345

約数列:

[1, 3, 41, 123, 487, 1461, 10667, 19967, 32001, 59901, 437347, 1312041, 5194829, 15584487, 212987989, 638963967]

約数ペア:

[(1, 638963967), (3, 212987989), (41, 15584487), (123, 5194829), (487, 1312041), (1461, 437347), (10667, 59901), (19967, 32001)]