18780636

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 52641792

約数和(自身を除く): 33861156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 67, 71, 84, 94, 134, 141, 142, 188, 201, 213, 268, 282, 284, 329, 402, 426, 469, 497, 564, 658, 804, 852, 938, 987, 994, 1316, 1407, 1491, 1876, 1974, 1988, 2814, 2982, 3149, 3337, 3948, 4757, 5628, 5964, 6298, 6674, 9447, 9514, 10011, 12596, 13348, 14271, 18894, 19028, 20022, 22043, 23359, 28542, 33299, 37788, 40044, 44086, 46718, 57084, 66129, 66598, 70077, 88172, 93436, 99897, 132258, 133196, 140154, 199794, 223579, 264516, 280308, 399588, 447158, 670737, 894316, 1341474, 1565053, 2682948, 3130106, 4695159, 6260212, 9390318, 18780636]

約数ペア:

[(1, 18780636), (2, 9390318), (3, 6260212), (4, 4695159), (6, 3130106), (7, 2682948), (12, 1565053), (14, 1341474), (21, 894316), (28, 670737), (42, 447158), (47, 399588), (67, 280308), (71, 264516), (84, 223579), (94, 199794), (134, 140154), (141, 133196), (142, 132258), (188, 99897), (201, 93436), (213, 88172), (268, 70077), (282, 66598), (284, 66129), (329, 57084), (402, 46718), (426, 44086), (469, 40044), (497, 37788), (564, 33299), (658, 28542), (804, 23359), (852, 22043), (938, 20022), (987, 19028), (994, 18894), (1316, 14271), (1407, 13348), (1491, 12596), (1876, 10011), (1974, 9514), (1988, 9447), (2814, 6674), (2982, 6298), (3149, 5964), (3337, 5628), (3948, 4757)]