19121804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 38723328

約数和(自身を除く): 19601524

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 97, 194, 221, 223, 388, 442, 446, 884, 892, 1261, 1649, 2522, 2899, 3298, 3791, 5044, 5798, 6596, 7582, 11596, 15164, 21437, 21631, 42874, 43262, 49283, 85748, 86524, 98566, 197132, 281203, 367727, 562406, 735454, 1124812, 1470908, 4780451, 9560902, 19121804]

約数ペア:

[(1, 19121804), (2, 9560902), (4, 4780451), (13, 1470908), (17, 1124812), (26, 735454), (34, 562406), (52, 367727), (68, 281203), (97, 197132), (194, 98566), (221, 86524), (223, 85748), (388, 49283), (442, 43262), (446, 42874), (884, 21631), (892, 21437), (1261, 15164), (1649, 11596), (2522, 7582), (2899, 6596), (3298, 5798), (3791, 5044)]