21431345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{6221}}^1$

素因数の和:6292

約数の個数: 16

約数和(自身を含む): 28222992

約数和(自身を除く): 6791647

約数列:

[1, 5, 13, 53, 65, 265, 689, 3445, 6221, 31105, 80873, 329713, 404365, 1648565, 4286269, 21431345]

約数ペア:

[(1, 21431345), (5, 4286269), (13, 1648565), (53, 404365), (65, 329713), (265, 80873), (689, 31105), (3445, 6221)]