21977090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{129277}}^1$

素因数の和:129301

約数の個数: 16

約数和(自身を含む): 41886072

約数和(自身を除く): 19908982

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 129277, 258554, 646385, 1292770, 2197709, 4395418, 10988545, 21977090]

約数ペア:

[(1, 21977090), (2, 10988545), (5, 4395418), (10, 2197709), (17, 1292770), (34, 646385), (85, 258554), (170, 129277)]