21493066

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 20842934

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 49, 97, 98, 119, 133, 194, 238, 266, 323, 343, 646, 679, 686, 833, 931, 1358, 1649, 1666, 1843, 1862, 2261, 3298, 3686, 4522, 4753, 5831, 6517, 9506, 11543, 11662, 12901, 13034, 15827, 23086, 25802, 31331, 31654, 33271, 62662, 66542, 80801, 90307, 110789, 161602, 180614, 219317, 221578, 438634, 565607, 632149, 1131214, 1264298, 1535219, 3070438, 10746533, 21493066]

約数ペア:

[(1, 21493066), (2, 10746533), (7, 3070438), (14, 1535219), (17, 1264298), (19, 1131214), (34, 632149), (38, 565607), (49, 438634), (97, 221578), (98, 219317), (119, 180614), (133, 161602), (194, 110789), (238, 90307), (266, 80801), (323, 66542), (343, 62662), (646, 33271), (679, 31654), (686, 31331), (833, 25802), (931, 23086), (1358, 15827), (1649, 13034), (1666, 12901), (1843, 11662), (1862, 11543), (2261, 9506), (3298, 6517), (3686, 5831), (4522, 4753)]