20244987

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1583}}^1$

素因数の和:1632

約数の個数: 36

約数和(自身を含む): 35212320

約数和(自身を除く): 14967333

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1583, 1827, 4263, 4749, 11081, 12789, 14247, 33243, 45907, 77567, 99729, 137721, 232701, 321349, 413163, 698103, 964047, 2249443, 2892141, 6748329, 20244987]

約数ペア:

[(1, 20244987), (3, 6748329), (7, 2892141), (9, 2249443), (21, 964047), (29, 698103), (49, 413163), (63, 321349), (87, 232701), (147, 137721), (203, 99729), (261, 77567), (441, 45907), (609, 33243), (1421, 14247), (1583, 12789), (1827, 11081), (4263, 4749)]