21302028

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 120

約数和(自身を含む): 62610240

約数和(自身を除く): 41308212

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 43, 44, 54, 66, 81, 86, 99, 108, 129, 132, 139, 162, 172, 198, 258, 278, 297, 324, 387, 396, 417, 473, 516, 556, 594, 774, 834, 891, 946, 1161, 1188, 1251, 1419, 1529, 1548, 1668, 1782, 1892, 2322, 2502, 2838, 3058, 3483, 3564, 3753, 4257, 4587, 4644, 5004, 5676, 5977, 6116, 6966, 7506, 8514, 9174, 11259, 11954, 12771, 13761, 13932, 15012, 17028, 17931, 18348, 22518, 23908, 25542, 27522, 35862, 38313, 41283, 45036, 51084, 53793, 55044, 65747, 71724, 76626, 82566, 107586, 123849, 131494, 153252, 161379, 165132, 197241, 215172, 247698, 262988, 322758, 394482, 484137, 495396, 591723, 645516, 788964, 968274, 1183446, 1775169, 1936548, 2366892, 3550338, 5325507, 7100676, 10651014, 21302028]

約数ペア:

[(1, 21302028), (2, 10651014), (3, 7100676), (4, 5325507), (6, 3550338), (9, 2366892), (11, 1936548), (12, 1775169), (18, 1183446), (22, 968274), (27, 788964), (33, 645516), (36, 591723), (43, 495396), (44, 484137), (54, 394482), (66, 322758), (81, 262988), (86, 247698), (99, 215172), (108, 197241), (129, 165132), (132, 161379), (139, 153252), (162, 131494), (172, 123849), (198, 107586), (258, 82566), (278, 76626), (297, 71724), (324, 65747), (387, 55044), (396, 53793), (417, 51084), (473, 45036), (516, 41283), (556, 38313), (594, 35862), (774, 27522), (834, 25542), (891, 23908), (946, 22518), (1161, 18348), (1188, 17931), (1251, 17028), (1419, 15012), (1529, 13932), (1548, 13761), (1668, 12771), (1782, 11954), (1892, 11259), (2322, 9174), (2502, 8514), (2838, 7506), (3058, 6966), (3483, 6116), (3564, 5977), (3753, 5676), (4257, 5004), (4587, 4644)]