21370190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125707}}^1$

素因数の和:125731

約数の個数: 16

約数和(自身を含む): 40729392

約数和(自身を除く): 19359202

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125707, 251414, 628535, 1257070, 2137019, 4274038, 10685095, 21370190]

約数ペア:

[(1, 21370190), (2, 10685095), (5, 4274038), (10, 2137019), (17, 1257070), (34, 628535), (85, 251414), (170, 125707)]