21221214

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 54172800

約数和(自身を除く): 32951586

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 29, 38, 42, 49, 57, 58, 87, 98, 114, 131, 133, 147, 174, 203, 262, 266, 294, 393, 399, 406, 551, 609, 786, 798, 917, 931, 1102, 1218, 1421, 1653, 1834, 1862, 2489, 2751, 2793, 2842, 3306, 3799, 3857, 4263, 4978, 5502, 5586, 6419, 7467, 7598, 7714, 8526, 11397, 11571, 12838, 14934, 17423, 19257, 22794, 23142, 26593, 26999, 34846, 38514, 52269, 53186, 53998, 72181, 79779, 80997, 104538, 121961, 144362, 159558, 161994, 186151, 216543, 243922, 365883, 372302, 433086, 505267, 558453, 731766, 1010534, 1116906, 1515801, 3031602, 3536869, 7073738, 10610607, 21221214]

約数ペア:

[(1, 21221214), (2, 10610607), (3, 7073738), (6, 3536869), (7, 3031602), (14, 1515801), (19, 1116906), (21, 1010534), (29, 731766), (38, 558453), (42, 505267), (49, 433086), (57, 372302), (58, 365883), (87, 243922), (98, 216543), (114, 186151), (131, 161994), (133, 159558), (147, 144362), (174, 121961), (203, 104538), (262, 80997), (266, 79779), (294, 72181), (393, 53998), (399, 53186), (406, 52269), (551, 38514), (609, 34846), (786, 26999), (798, 26593), (917, 23142), (931, 22794), (1102, 19257), (1218, 17423), (1421, 14934), (1653, 12838), (1834, 11571), (1862, 11397), (2489, 8526), (2751, 7714), (2793, 7598), (2842, 7467), (3306, 6419), (3799, 5586), (3857, 5502), (4263, 4978)]