1991028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{12763}}^1$

素因数の和:12783

約数の個数: 24

約数和(自身を含む): 5003488

約数和(自身を除く): 3012460

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 12763, 25526, 38289, 51052, 76578, 153156, 165919, 331838, 497757, 663676, 995514, 1991028]

約数ペア:

[(1, 1991028), (2, 995514), (3, 663676), (4, 497757), (6, 331838), (12, 165919), (13, 153156), (26, 76578), (39, 51052), (52, 38289), (78, 25526), (156, 12763)]