18911612

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 37632000

約数和(自身を除く): 18720388

約数列:

[1, 2, 4, 19, 23, 31, 38, 46, 62, 76, 92, 124, 349, 437, 589, 698, 713, 874, 1178, 1396, 1426, 1748, 2356, 2852, 6631, 8027, 10819, 13262, 13547, 16054, 21638, 26524, 27094, 32108, 43276, 54188, 152513, 205561, 248837, 305026, 411122, 497674, 610052, 822244, 995348, 4727903, 9455806, 18911612]

約数ペア:

[(1, 18911612), (2, 9455806), (4, 4727903), (19, 995348), (23, 822244), (31, 610052), (38, 497674), (46, 411122), (62, 305026), (76, 248837), (92, 205561), (124, 152513), (349, 54188), (437, 43276), (589, 32108), (698, 27094), (713, 26524), (874, 21638), (1178, 16054), (1396, 13547), (1426, 13262), (1748, 10819), (2356, 8027), (2852, 6631)]