18705808

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4621}}^1$

素因数の和:4663

約数の個数: 40

約数和(自身を含む): 41265216

約数和(自身を除く): 22559408

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 4621, 9242, 18484, 36968, 50831, 73936, 101662, 106283, 203324, 212566, 406648, 425132, 813296, 850264, 1169113, 1700528, 2338226, 4676452, 9352904, 18705808]

約数ペア:

[(1, 18705808), (2, 9352904), (4, 4676452), (8, 2338226), (11, 1700528), (16, 1169113), (22, 850264), (23, 813296), (44, 425132), (46, 406648), (88, 212566), (92, 203324), (176, 106283), (184, 101662), (253, 73936), (368, 50831), (506, 36968), (1012, 18484), (2024, 9242), (4048, 4621)]