18973712

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1097}}^1$

素因数の和:1175

約数の個数: 40

約数和(自身を含む): 39211776

約数和(自身を除く): 20238064

約数列:

[1, 2, 4, 8, 16, 23, 46, 47, 92, 94, 184, 188, 368, 376, 752, 1081, 1097, 2162, 2194, 4324, 4388, 8648, 8776, 17296, 17552, 25231, 50462, 51559, 100924, 103118, 201848, 206236, 403696, 412472, 824944, 1185857, 2371714, 4743428, 9486856, 18973712]

約数ペア:

[(1, 18973712), (2, 9486856), (4, 4743428), (8, 2371714), (16, 1185857), (23, 824944), (46, 412472), (47, 403696), (92, 206236), (94, 201848), (184, 103118), (188, 100924), (368, 51559), (376, 50462), (752, 25231), (1081, 17552), (1097, 17296), (2162, 8776), (2194, 8648), (4324, 4388)]