18557968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8111}}^1$

素因数の和:8143

約数の個数: 40

約数和(自身を含む): 42247296

約数和(自身を除く): 23689328

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8111, 16222, 32444, 64888, 89221, 105443, 129776, 178442, 210886, 356884, 421772, 713768, 843544, 1159873, 1427536, 1687088, 2319746, 4639492, 9278984, 18557968]

約数ペア:

[(1, 18557968), (2, 9278984), (4, 4639492), (8, 2319746), (11, 1687088), (13, 1427536), (16, 1159873), (22, 843544), (26, 713768), (44, 421772), (52, 356884), (88, 210886), (104, 178442), (143, 129776), (176, 105443), (208, 89221), (286, 64888), (572, 32444), (1144, 16222), (2288, 8111)]