19843544

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 44669760

約数和(自身を除く): 24826216

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 61, 74, 122, 148, 157, 244, 259, 296, 314, 427, 488, 518, 628, 854, 1036, 1099, 1256, 1708, 2072, 2198, 2257, 3416, 4396, 4514, 5809, 8792, 9028, 9577, 11618, 15799, 18056, 19154, 23236, 31598, 38308, 40663, 46472, 63196, 67039, 76616, 81326, 126392, 134078, 162652, 268156, 325304, 354349, 536312, 708698, 1417396, 2480443, 2834792, 4960886, 9921772, 19843544]

約数ペア:

[(1, 19843544), (2, 9921772), (4, 4960886), (7, 2834792), (8, 2480443), (14, 1417396), (28, 708698), (37, 536312), (56, 354349), (61, 325304), (74, 268156), (122, 162652), (148, 134078), (157, 126392), (244, 81326), (259, 76616), (296, 67039), (314, 63196), (427, 46472), (488, 40663), (518, 38308), (628, 31598), (854, 23236), (1036, 19154), (1099, 18056), (1256, 15799), (1708, 11618), (2072, 9577), (2198, 9028), (2257, 8792), (3416, 5809), (4396, 4514)]