21092016

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:994

約数の個数: 80

約数和(自身を含む): 60888960

約数和(自身を除く): 39796944

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 43, 44, 48, 66, 86, 88, 129, 132, 172, 176, 258, 264, 344, 473, 516, 528, 688, 929, 946, 1032, 1419, 1858, 1892, 2064, 2787, 2838, 3716, 3784, 5574, 5676, 7432, 7568, 10219, 11148, 11352, 14864, 20438, 22296, 22704, 30657, 39947, 40876, 44592, 61314, 79894, 81752, 119841, 122628, 159788, 163504, 239682, 245256, 319576, 439417, 479364, 490512, 639152, 878834, 958728, 1318251, 1757668, 1917456, 2636502, 3515336, 5273004, 7030672, 10546008, 21092016]

約数ペア:

[(1, 21092016), (2, 10546008), (3, 7030672), (4, 5273004), (6, 3515336), (8, 2636502), (11, 1917456), (12, 1757668), (16, 1318251), (22, 958728), (24, 878834), (33, 639152), (43, 490512), (44, 479364), (48, 439417), (66, 319576), (86, 245256), (88, 239682), (129, 163504), (132, 159788), (172, 122628), (176, 119841), (258, 81752), (264, 79894), (344, 61314), (473, 44592), (516, 40876), (528, 39947), (688, 30657), (929, 22704), (946, 22296), (1032, 20438), (1419, 14864), (1858, 11352), (1892, 11148), (2064, 10219), (2787, 7568), (2838, 7432), (3716, 5676), (3784, 5574)]