21489291972

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{883}}^1\times {\mathrm{23311}}^1$

素因数の和:24233

約数の個数: 72

約数和(自身を含む): 56259315840

約数和(自身を除く): 34770023868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 883, 1044, 1766, 2649, 3532, 5298, 7947, 10596, 15894, 23311, 25607, 31788, 46622, 51214, 69933, 76821, 93244, 102428, 139866, 153642, 209799, 230463, 279732, 307284, 419598, 460926, 676019, 839196, 921852, 1352038, 2028057, 2704076, 4056114, 6084171, 8112228, 12168342, 20583613, 24336684, 41167226, 61750839, 82334452, 123501678, 185252517, 247003356, 370505034, 596924777, 741010068, 1193849554, 1790774331, 2387699108, 3581548662, 5372322993, 7163097324, 10744645986, 21489291972]

約数ペア:

[(1, 21489291972), (2, 10744645986), (3, 7163097324), (4, 5372322993), (6, 3581548662), (9, 2387699108), (12, 1790774331), (18, 1193849554), (29, 741010068), (36, 596924777), (58, 370505034), (87, 247003356), (116, 185252517), (174, 123501678), (261, 82334452), (348, 61750839), (522, 41167226), (883, 24336684), (1044, 20583613), (1766, 12168342), (2649, 8112228), (3532, 6084171), (5298, 4056114), (7947, 2704076), (10596, 2028057), (15894, 1352038), (23311, 921852), (25607, 839196), (31788, 676019), (46622, 460926), (51214, 419598), (69933, 307284), (76821, 279732), (93244, 230463), (102428, 209799), (139866, 153642)]