18990848

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2393}}^1$

素因数の和:2440

約数の個数: 36

約数和(自身を含む): 39146688

約数和(自身を除く): 20155840

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2393, 3968, 4786, 7936, 9572, 19144, 38288, 74183, 76576, 148366, 153152, 296732, 306304, 593464, 612608, 1186928, 2373856, 4747712, 9495424, 18990848]

約数ペア:

[(1, 18990848), (2, 9495424), (4, 4747712), (8, 2373856), (16, 1186928), (31, 612608), (32, 593464), (62, 306304), (64, 296732), (124, 153152), (128, 148366), (248, 76576), (256, 74183), (496, 38288), (992, 19144), (1984, 9572), (2393, 7936), (3968, 4786)]