21621348

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:151

約数の個数: 144

約数和(自身を含む): 68140800

約数和(自身を除く): 46519452

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 49, 51, 63, 68, 84, 98, 102, 103, 119, 126, 147, 153, 196, 204, 206, 238, 252, 294, 306, 309, 343, 357, 412, 441, 476, 588, 612, 618, 686, 714, 721, 833, 882, 927, 1029, 1071, 1236, 1372, 1428, 1442, 1666, 1751, 1764, 1854, 2058, 2142, 2163, 2499, 2884, 3087, 3332, 3502, 3708, 4116, 4284, 4326, 4998, 5047, 5253, 5831, 6174, 6489, 7004, 7497, 8652, 9996, 10094, 10506, 11662, 12257, 12348, 12978, 14994, 15141, 15759, 17493, 20188, 21012, 23324, 24514, 25956, 29988, 30282, 31518, 34986, 35329, 36771, 45423, 49028, 52479, 60564, 63036, 69972, 70658, 73542, 85799, 90846, 104958, 105987, 110313, 141316, 147084, 171598, 181692, 209916, 211974, 220626, 257397, 317961, 343196, 423948, 441252, 514794, 600593, 635922, 772191, 1029588, 1201186, 1271844, 1544382, 1801779, 2402372, 3088764, 3603558, 5405337, 7207116, 10810674, 21621348]

約数ペア:

[(1, 21621348), (2, 10810674), (3, 7207116), (4, 5405337), (6, 3603558), (7, 3088764), (9, 2402372), (12, 1801779), (14, 1544382), (17, 1271844), (18, 1201186), (21, 1029588), (28, 772191), (34, 635922), (36, 600593), (42, 514794), (49, 441252), (51, 423948), (63, 343196), (68, 317961), (84, 257397), (98, 220626), (102, 211974), (103, 209916), (119, 181692), (126, 171598), (147, 147084), (153, 141316), (196, 110313), (204, 105987), (206, 104958), (238, 90846), (252, 85799), (294, 73542), (306, 70658), (309, 69972), (343, 63036), (357, 60564), (412, 52479), (441, 49028), (476, 45423), (588, 36771), (612, 35329), (618, 34986), (686, 31518), (714, 30282), (721, 29988), (833, 25956), (882, 24514), (927, 23324), (1029, 21012), (1071, 20188), (1236, 17493), (1372, 15759), (1428, 15141), (1442, 14994), (1666, 12978), (1751, 12348), (1764, 12257), (1854, 11662), (2058, 10506), (2142, 10094), (2163, 9996), (2499, 8652), (2884, 7497), (3087, 7004), (3332, 6489), (3502, 6174), (3708, 5831), (4116, 5253), (4284, 5047), (4326, 4998)]