21000170

素因数分解:

$2^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{2503}}^1$

素因数の和:3349

約数の個数: 16

約数和(自身を含む): 37860480

約数和(自身を除く): 16860310

約数列:

[1, 2, 5, 10, 839, 1678, 2503, 4195, 5006, 8390, 12515, 25030, 2100017, 4200034, 10500085, 21000170]

約数ペア:

[(1, 21000170), (2, 10500085), (5, 4200034), (10, 2100017), (839, 25030), (1678, 12515), (2503, 8390), (4195, 5006)]