21849575

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:296

約数の個数: 36

約数和(自身を含む): 30873024

約数和(自身を除く): 9023449

約数列:

[1, 5, 11, 25, 31, 55, 121, 155, 233, 275, 341, 605, 775, 1165, 1705, 2563, 3025, 3751, 5825, 7223, 8525, 12815, 18755, 28193, 36115, 64075, 79453, 93775, 140965, 180575, 397265, 704825, 873983, 1986325, 4369915, 21849575]

約数ペア:

[(1, 21849575), (5, 4369915), (11, 1986325), (25, 873983), (31, 704825), (55, 397265), (121, 180575), (155, 140965), (233, 93775), (275, 79453), (341, 64075), (605, 36115), (775, 28193), (1165, 18755), (1705, 12815), (2563, 8525), (3025, 7223), (3751, 5825)]