19388538

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 27785862

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 117, 142, 213, 234, 351, 389, 426, 639, 702, 778, 923, 1167, 1278, 1846, 1917, 2334, 2769, 3501, 3834, 5057, 5538, 7002, 8307, 10114, 10503, 15171, 16614, 21006, 24921, 27619, 30342, 45513, 49842, 55238, 82857, 91026, 136539, 165714, 248571, 273078, 359047, 497142, 718094, 745713, 1077141, 1491426, 2154282, 3231423, 6462846, 9694269, 19388538]

約数ペア:

[(1, 19388538), (2, 9694269), (3, 6462846), (6, 3231423), (9, 2154282), (13, 1491426), (18, 1077141), (26, 745713), (27, 718094), (39, 497142), (54, 359047), (71, 273078), (78, 248571), (117, 165714), (142, 136539), (213, 91026), (234, 82857), (351, 55238), (389, 49842), (426, 45513), (639, 30342), (702, 27619), (778, 24921), (923, 21006), (1167, 16614), (1278, 15171), (1846, 10503), (1917, 10114), (2334, 8307), (2769, 7002), (3501, 5538), (3834, 5057)]