19391968

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:899

約数の個数: 48

約数和(自身を含む): 41413680

約数和(自身を除く): 22021712

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 68, 86, 136, 172, 272, 344, 544, 688, 731, 829, 1376, 1462, 1658, 2924, 3316, 5848, 6632, 11696, 13264, 14093, 23392, 26528, 28186, 35647, 56372, 71294, 112744, 142588, 225488, 285176, 450976, 570352, 605999, 1140704, 1211998, 2423996, 4847992, 9695984, 19391968]

約数ペア:

[(1, 19391968), (2, 9695984), (4, 4847992), (8, 2423996), (16, 1211998), (17, 1140704), (32, 605999), (34, 570352), (43, 450976), (68, 285176), (86, 225488), (136, 142588), (172, 112744), (272, 71294), (344, 56372), (544, 35647), (688, 28186), (731, 26528), (829, 23392), (1376, 14093), (1462, 13264), (1658, 11696), (2924, 6632), (3316, 5848)]