21378588

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1361}}^1$

素因数の和:1403

約数の個数: 96

約数和(自身を含む): 65899008

約数和(自身を除く): 44520420

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 33, 34, 42, 44, 51, 66, 68, 77, 84, 102, 119, 132, 154, 187, 204, 231, 238, 308, 357, 374, 462, 476, 561, 714, 748, 924, 1122, 1309, 1361, 1428, 2244, 2618, 2722, 3927, 4083, 5236, 5444, 7854, 8166, 9527, 14971, 15708, 16332, 19054, 23137, 28581, 29942, 38108, 44913, 46274, 57162, 59884, 69411, 89826, 92548, 104797, 114324, 138822, 161959, 179652, 209594, 254507, 277644, 314391, 323918, 419188, 485877, 509014, 628782, 647836, 763521, 971754, 1018028, 1257564, 1527042, 1781549, 1943508, 3054084, 3563098, 5344647, 7126196, 10689294, 21378588]

約数ペア:

[(1, 21378588), (2, 10689294), (3, 7126196), (4, 5344647), (6, 3563098), (7, 3054084), (11, 1943508), (12, 1781549), (14, 1527042), (17, 1257564), (21, 1018028), (22, 971754), (28, 763521), (33, 647836), (34, 628782), (42, 509014), (44, 485877), (51, 419188), (66, 323918), (68, 314391), (77, 277644), (84, 254507), (102, 209594), (119, 179652), (132, 161959), (154, 138822), (187, 114324), (204, 104797), (231, 92548), (238, 89826), (308, 69411), (357, 59884), (374, 57162), (462, 46274), (476, 44913), (561, 38108), (714, 29942), (748, 28581), (924, 23137), (1122, 19054), (1309, 16332), (1361, 15708), (1428, 14971), (2244, 9527), (2618, 8166), (2722, 7854), (3927, 5444), (4083, 5236)]