21142968

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{673}}^1$

素因数の和:717

約数の個数: 128

約数和(自身を含む): 69880320

約数和(自身を除く): 48737352

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 17, 21, 22, 24, 28, 33, 34, 42, 44, 51, 56, 66, 68, 77, 84, 88, 102, 119, 132, 136, 154, 168, 187, 204, 231, 238, 264, 308, 357, 374, 408, 462, 476, 561, 616, 673, 714, 748, 924, 952, 1122, 1309, 1346, 1428, 1496, 1848, 2019, 2244, 2618, 2692, 2856, 3927, 4038, 4488, 4711, 5236, 5384, 7403, 7854, 8076, 9422, 10472, 11441, 14133, 14806, 15708, 16152, 18844, 22209, 22882, 28266, 29612, 31416, 34323, 37688, 44418, 45764, 51821, 56532, 59224, 68646, 80087, 88836, 91528, 103642, 113064, 125851, 137292, 155463, 160174, 177672, 207284, 240261, 251702, 274584, 310926, 320348, 377553, 414568, 480522, 503404, 621852, 640696, 755106, 880957, 961044, 1006808, 1243704, 1510212, 1761914, 1922088, 2642871, 3020424, 3523828, 5285742, 7047656, 10571484, 21142968]

約数ペア:

[(1, 21142968), (2, 10571484), (3, 7047656), (4, 5285742), (6, 3523828), (7, 3020424), (8, 2642871), (11, 1922088), (12, 1761914), (14, 1510212), (17, 1243704), (21, 1006808), (22, 961044), (24, 880957), (28, 755106), (33, 640696), (34, 621852), (42, 503404), (44, 480522), (51, 414568), (56, 377553), (66, 320348), (68, 310926), (77, 274584), (84, 251702), (88, 240261), (102, 207284), (119, 177672), (132, 160174), (136, 155463), (154, 137292), (168, 125851), (187, 113064), (204, 103642), (231, 91528), (238, 88836), (264, 80087), (308, 68646), (357, 59224), (374, 56532), (408, 51821), (462, 45764), (476, 44418), (561, 37688), (616, 34323), (673, 31416), (714, 29612), (748, 28266), (924, 22882), (952, 22209), (1122, 18844), (1309, 16152), (1346, 15708), (1428, 14806), (1496, 14133), (1848, 11441), (2019, 10472), (2244, 9422), (2618, 8076), (2692, 7854), (2856, 7403), (3927, 5384), (4038, 5236), (4488, 4711)]