21559070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{433}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 41997312

約数和(自身を除く): 20438242

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 383, 433, 766, 866, 1915, 2165, 3830, 4330, 4979, 5629, 9958, 11258, 24895, 28145, 49790, 56290, 165839, 331678, 829195, 1658390, 2155907, 4311814, 10779535, 21559070]

約数ペア:

[(1, 21559070), (2, 10779535), (5, 4311814), (10, 2155907), (13, 1658390), (26, 829195), (65, 331678), (130, 165839), (383, 56290), (433, 49790), (766, 28145), (866, 24895), (1915, 11258), (2165, 9958), (3830, 5629), (4330, 4979)]