21229355

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8543}}^1$

素因数の和:8626

約数の個数: 16

約数和(自身を含む): 29528064

約数和(自身を除く): 8298709

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 8543, 42715, 59801, 299005, 606553, 3032765, 4245871, 21229355]

約数ペア:

[(1, 21229355), (5, 4245871), (7, 3032765), (35, 606553), (71, 299005), (355, 59801), (497, 42715), (2485, 8543)]