21864550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{887}}^1$

素因数の和:945

約数の個数: 48

約数和(自身を含む): 44595360

約数和(自身を除く): 22730810

約数列:

[1, 2, 5, 10, 17, 25, 29, 34, 50, 58, 85, 145, 170, 290, 425, 493, 725, 850, 887, 986, 1450, 1774, 2465, 4435, 4930, 8870, 12325, 15079, 22175, 24650, 25723, 30158, 44350, 51446, 75395, 128615, 150790, 257230, 376975, 437291, 643075, 753950, 874582, 1286150, 2186455, 4372910, 10932275, 21864550]

約数ペア:

[(1, 21864550), (2, 10932275), (5, 4372910), (10, 2186455), (17, 1286150), (25, 874582), (29, 753950), (34, 643075), (50, 437291), (58, 376975), (85, 257230), (145, 150790), (170, 128615), (290, 75395), (425, 51446), (493, 44350), (725, 30158), (850, 25723), (887, 24650), (986, 22175), (1450, 15079), (1774, 12325), (2465, 8870), (4435, 4930)]