19945464

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 43921416

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 43, 44, 56, 66, 77, 84, 86, 88, 129, 132, 154, 168, 172, 231, 251, 258, 264, 301, 308, 344, 462, 473, 502, 516, 602, 616, 753, 903, 924, 946, 1004, 1032, 1204, 1419, 1506, 1757, 1806, 1848, 1892, 2008, 2408, 2761, 2838, 3012, 3311, 3514, 3612, 3784, 5271, 5522, 5676, 6024, 6622, 7028, 7224, 8283, 9933, 10542, 10793, 11044, 11352, 13244, 14056, 16566, 19327, 19866, 21084, 21586, 22088, 26488, 32379, 33132, 38654, 39732, 42168, 43172, 57981, 64758, 66264, 75551, 77308, 79464, 86344, 115962, 118723, 129516, 151102, 154616, 226653, 231924, 237446, 259032, 302204, 356169, 453306, 463848, 474892, 604408, 712338, 831061, 906612, 949784, 1424676, 1662122, 1813224, 2493183, 2849352, 3324244, 4986366, 6648488, 9972732, 19945464]

約数ペア:

[(1, 19945464), (2, 9972732), (3, 6648488), (4, 4986366), (6, 3324244), (7, 2849352), (8, 2493183), (11, 1813224), (12, 1662122), (14, 1424676), (21, 949784), (22, 906612), (24, 831061), (28, 712338), (33, 604408), (42, 474892), (43, 463848), (44, 453306), (56, 356169), (66, 302204), (77, 259032), (84, 237446), (86, 231924), (88, 226653), (129, 154616), (132, 151102), (154, 129516), (168, 118723), (172, 115962), (231, 86344), (251, 79464), (258, 77308), (264, 75551), (301, 66264), (308, 64758), (344, 57981), (462, 43172), (473, 42168), (502, 39732), (516, 38654), (602, 33132), (616, 32379), (753, 26488), (903, 22088), (924, 21586), (946, 21084), (1004, 19866), (1032, 19327), (1204, 16566), (1419, 14056), (1506, 13244), (1757, 11352), (1806, 11044), (1848, 10793), (1892, 10542), (2008, 9933), (2408, 8283), (2761, 7224), (2838, 7028), (3012, 6622), (3311, 6024), (3514, 5676), (3612, 5522), (3784, 5271)]