21306064

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102433}}^1$

素因数の和:102454

約数の個数: 20

約数和(自身を含む): 44456356

約数和(自身を除く): 23150292

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102433, 204866, 409732, 819464, 1331629, 1638928, 2663258, 5326516, 10653032, 21306064]

約数ペア:

[(1, 21306064), (2, 10653032), (4, 5326516), (8, 2663258), (13, 1638928), (16, 1331629), (26, 819464), (52, 409732), (104, 204866), (208, 102433)]