18571816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2003}}^1$

素因数の和:2089

約数の個数: 32

約数和(自身を含む): 37274400

約数和(自身を除く): 18702584

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2003, 2318, 4006, 4636, 8012, 9272, 16024, 38057, 76114, 122183, 152228, 244366, 304456, 488732, 977464, 2321477, 4642954, 9285908, 18571816]

約数ペア:

[(1, 18571816), (2, 9285908), (4, 4642954), (8, 2321477), (19, 977464), (38, 488732), (61, 304456), (76, 244366), (122, 152228), (152, 122183), (244, 76114), (488, 38057), (1159, 16024), (2003, 9272), (2318, 8012), (4006, 4636)]