19901982

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{54377}}^1$

素因数の和:54443

約数の個数: 16

約数和(自身を含む): 40457232

約数和(自身を除く): 20555250

約数列:

[1, 2, 3, 6, 61, 122, 183, 366, 54377, 108754, 163131, 326262, 3316997, 6633994, 9950991, 19901982]

約数ペア:

[(1, 19901982), (2, 9950991), (3, 6633994), (6, 3316997), (61, 326262), (122, 163131), (183, 108754), (366, 54377)]