21936488

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 50544000

約数和(自身を除く): 28607512

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 53, 56, 76, 106, 133, 152, 212, 266, 371, 389, 424, 532, 742, 778, 1007, 1064, 1484, 1556, 2014, 2723, 2968, 3112, 4028, 5446, 7049, 7391, 8056, 10892, 14098, 14782, 20617, 21784, 28196, 29564, 41234, 51737, 56392, 59128, 82468, 103474, 144319, 164936, 206948, 288638, 391723, 413896, 577276, 783446, 1154552, 1566892, 2742061, 3133784, 5484122, 10968244, 21936488]

約数ペア:

[(1, 21936488), (2, 10968244), (4, 5484122), (7, 3133784), (8, 2742061), (14, 1566892), (19, 1154552), (28, 783446), (38, 577276), (53, 413896), (56, 391723), (76, 288638), (106, 206948), (133, 164936), (152, 144319), (212, 103474), (266, 82468), (371, 59128), (389, 56392), (424, 51737), (532, 41234), (742, 29564), (778, 28196), (1007, 21784), (1064, 20617), (1484, 14782), (1556, 14098), (2014, 10892), (2723, 8056), (2968, 7391), (3112, 7049), (4028, 5446)]