20974804916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{2371}}^1\times {\mathrm{170123}}^1$

素因数の和:172511

約数の個数: 24

約数和(自身を含む): 39546344544

約数和(自身を除く): 18571539628

約数列:

[1, 2, 4, 13, 26, 52, 2371, 4742, 9484, 30823, 61646, 123292, 170123, 340246, 680492, 2211599, 4423198, 8846396, 403361633, 806723266, 1613446532, 5243701229, 10487402458, 20974804916]

約数ペア:

[(1, 20974804916), (2, 10487402458), (4, 5243701229), (13, 1613446532), (26, 806723266), (52, 403361633), (2371, 8846396), (4742, 4423198), (9484, 2211599), (30823, 680492), (61646, 340246), (123292, 170123)]