21064888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3433}}^1$

素因数の和:3511

約数の個数: 32

約数和(自身を含む): 43268400

約数和(自身を除く): 22203512

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 104, 118, 236, 472, 767, 1534, 3068, 3433, 6136, 6866, 13732, 27464, 44629, 89258, 178516, 202547, 357032, 405094, 810188, 1620376, 2633111, 5266222, 10532444, 21064888]

約数ペア:

[(1, 21064888), (2, 10532444), (4, 5266222), (8, 2633111), (13, 1620376), (26, 810188), (52, 405094), (59, 357032), (104, 202547), (118, 178516), (236, 89258), (472, 44629), (767, 27464), (1534, 13732), (3068, 6866), (3433, 6136)]