21362900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16433}}^1$

素因数の和:16460

約数の個数: 36

約数和(自身を含む): 49926492

約数和(自身を除く): 28563592

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16433, 32866, 65732, 82165, 164330, 213629, 328660, 410825, 427258, 821650, 854516, 1068145, 1643300, 2136290, 4272580, 5340725, 10681450, 21362900]

約数ペア:

[(1, 21362900), (2, 10681450), (4, 5340725), (5, 4272580), (10, 2136290), (13, 1643300), (20, 1068145), (25, 854516), (26, 821650), (50, 427258), (52, 410825), (65, 328660), (100, 213629), (130, 164330), (260, 82165), (325, 65732), (650, 32866), (1300, 16433)]