21502096

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 53710848

約数和(自身を除く): 32208752

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 176, 217, 248, 308, 341, 434, 496, 563, 616, 682, 868, 1126, 1232, 1364, 1736, 2252, 2387, 2728, 3472, 3941, 4504, 4774, 5456, 6193, 7882, 9008, 9548, 12386, 15764, 17453, 19096, 24772, 31528, 34906, 38192, 43351, 49544, 63056, 69812, 86702, 99088, 122171, 139624, 173404, 191983, 244342, 279248, 346808, 383966, 488684, 693616, 767932, 977368, 1343881, 1535864, 1954736, 2687762, 3071728, 5375524, 10751048, 21502096]

約数ペア:

[(1, 21502096), (2, 10751048), (4, 5375524), (7, 3071728), (8, 2687762), (11, 1954736), (14, 1535864), (16, 1343881), (22, 977368), (28, 767932), (31, 693616), (44, 488684), (56, 383966), (62, 346808), (77, 279248), (88, 244342), (112, 191983), (124, 173404), (154, 139624), (176, 122171), (217, 99088), (248, 86702), (308, 69812), (341, 63056), (434, 49544), (496, 43351), (563, 38192), (616, 34906), (682, 31528), (868, 24772), (1126, 19096), (1232, 17453), (1364, 15764), (1736, 12386), (2252, 9548), (2387, 9008), (2728, 7882), (3472, 6193), (3941, 5456), (4504, 4774)]