21285370

素因数分解:

$2^1\times 5^1\times {\mathrm{1447}}^1\times {\mathrm{1471}}^1$

素因数の和:2925

約数の個数: 16

約数和(自身を含む): 38366208

約数和(自身を除く): 17080838

約数列:

[1, 2, 5, 10, 1447, 1471, 2894, 2942, 7235, 7355, 14470, 14710, 2128537, 4257074, 10642685, 21285370]

約数ペア:

[(1, 21285370), (2, 10642685), (5, 4257074), (10, 2128537), (1447, 14710), (1471, 14470), (2894, 7355), (2942, 7235)]