21921810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{730727}}^1$

素因数の和:730737

約数の個数: 16

約数和(自身を含む): 52612416

約数和(自身を除く): 30690606

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 730727, 1461454, 2192181, 3653635, 4384362, 7307270, 10960905, 21921810]

約数ペア:

[(1, 21921810), (2, 10960905), (3, 7307270), (5, 4384362), (6, 3653635), (10, 2192181), (15, 1461454), (30, 730727)]