20738536

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{467}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 48746880

約数和(自身を除く): 28008344

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 61, 91, 104, 122, 182, 244, 364, 427, 467, 488, 728, 793, 854, 934, 1586, 1708, 1868, 3172, 3269, 3416, 3736, 5551, 6071, 6344, 6538, 11102, 12142, 13076, 22204, 24284, 26152, 28487, 42497, 44408, 48568, 56974, 84994, 113948, 169988, 199409, 227896, 339976, 370331, 398818, 740662, 797636, 1481324, 1595272, 2592317, 2962648, 5184634, 10369268, 20738536]

約数ペア:

[(1, 20738536), (2, 10369268), (4, 5184634), (7, 2962648), (8, 2592317), (13, 1595272), (14, 1481324), (26, 797636), (28, 740662), (52, 398818), (56, 370331), (61, 339976), (91, 227896), (104, 199409), (122, 169988), (182, 113948), (244, 84994), (364, 56974), (427, 48568), (467, 44408), (488, 42497), (728, 28487), (793, 26152), (854, 24284), (934, 22204), (1586, 13076), (1708, 12142), (1868, 11102), (3172, 6538), (3269, 6344), (3416, 6071), (3736, 5551)]