18497908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 38638656

約数和(自身を除く): 20140748

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 73, 143, 146, 286, 292, 443, 572, 803, 886, 949, 1606, 1772, 1898, 3212, 3796, 4873, 5759, 9746, 10439, 11518, 19492, 20878, 23036, 32339, 41756, 63349, 64678, 126698, 129356, 253396, 355729, 420407, 711458, 840814, 1422916, 1681628, 4624477, 9248954, 18497908]

約数ペア:

[(1, 18497908), (2, 9248954), (4, 4624477), (11, 1681628), (13, 1422916), (22, 840814), (26, 711458), (44, 420407), (52, 355729), (73, 253396), (143, 129356), (146, 126698), (286, 64678), (292, 63349), (443, 41756), (572, 32339), (803, 23036), (886, 20878), (949, 19492), (1606, 11518), (1772, 10439), (1898, 9746), (3212, 5759), (3796, 4873)]