18611222

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 36188160

約数和(自身を除く): 17576938

約数列:

[1, 2, 7, 14, 19, 31, 37, 38, 61, 62, 74, 122, 133, 217, 259, 266, 427, 434, 518, 589, 703, 854, 1147, 1159, 1178, 1406, 1891, 2257, 2294, 2318, 3782, 4123, 4514, 4921, 8029, 8113, 8246, 9842, 13237, 15799, 16058, 16226, 21793, 26474, 31598, 35929, 42883, 43586, 69967, 71858, 85766, 139934, 152551, 251503, 300181, 305102, 489769, 503006, 600362, 979538, 1329373, 2658746, 9305611, 18611222]

約数ペア:

[(1, 18611222), (2, 9305611), (7, 2658746), (14, 1329373), (19, 979538), (31, 600362), (37, 503006), (38, 489769), (61, 305102), (62, 300181), (74, 251503), (122, 152551), (133, 139934), (217, 85766), (259, 71858), (266, 69967), (427, 43586), (434, 42883), (518, 35929), (589, 31598), (703, 26474), (854, 21793), (1147, 16226), (1159, 16058), (1178, 15799), (1406, 13237), (1891, 9842), (2257, 8246), (2294, 8113), (2318, 8029), (3782, 4921), (4123, 4514)]