21127090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124277}}^1$

素因数の和:124301

約数の個数: 16

約数和(自身を含む): 40266072

約数和(自身を除く): 19138982

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124277, 248554, 621385, 1242770, 2112709, 4225418, 10563545, 21127090]

約数ペア:

[(1, 21127090), (2, 10563545), (5, 4225418), (10, 2112709), (17, 1242770), (34, 621385), (85, 248554), (170, 124277)]