21021385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54601}}^1$

素因数の和:54624

約数の個数: 16

約数和(自身を含む): 31450752

約数和(自身を除く): 10429367

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54601, 273005, 382207, 600611, 1911035, 3003055, 4204277, 21021385]

約数ペア:

[(1, 21021385), (5, 4204277), (7, 3003055), (11, 1911035), (35, 600611), (55, 382207), (77, 273005), (385, 54601)]