21670572

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:571

約数の個数: 96

約数和(自身を含む): 64512000

約数和(自身を除く): 42841428

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 47, 66, 77, 84, 94, 132, 141, 154, 188, 231, 282, 308, 329, 462, 499, 517, 564, 658, 924, 987, 998, 1034, 1316, 1497, 1551, 1974, 1996, 2068, 2994, 3102, 3493, 3619, 3948, 5489, 5988, 6204, 6986, 7238, 10479, 10857, 10978, 13972, 14476, 16467, 20958, 21714, 21956, 23453, 32934, 38423, 41916, 43428, 46906, 65868, 70359, 76846, 93812, 115269, 140718, 153692, 164171, 230538, 257983, 281436, 328342, 461076, 492513, 515966, 656684, 773949, 985026, 1031932, 1547898, 1805881, 1970052, 3095796, 3611762, 5417643, 7223524, 10835286, 21670572]

約数ペア:

[(1, 21670572), (2, 10835286), (3, 7223524), (4, 5417643), (6, 3611762), (7, 3095796), (11, 1970052), (12, 1805881), (14, 1547898), (21, 1031932), (22, 985026), (28, 773949), (33, 656684), (42, 515966), (44, 492513), (47, 461076), (66, 328342), (77, 281436), (84, 257983), (94, 230538), (132, 164171), (141, 153692), (154, 140718), (188, 115269), (231, 93812), (282, 76846), (308, 70359), (329, 65868), (462, 46906), (499, 43428), (517, 41916), (564, 38423), (658, 32934), (924, 23453), (987, 21956), (998, 21714), (1034, 20958), (1316, 16467), (1497, 14476), (1551, 13972), (1974, 10978), (1996, 10857), (2068, 10479), (2994, 7238), (3102, 6986), (3493, 6204), (3619, 5988), (3948, 5489)]