18901072

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:811

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 19667888

約数列:

[1, 2, 4, 8, 16, 31, 53, 62, 106, 124, 212, 248, 424, 496, 719, 848, 1438, 1643, 2876, 3286, 5752, 6572, 11504, 13144, 22289, 26288, 38107, 44578, 76214, 89156, 152428, 178312, 304856, 356624, 609712, 1181317, 2362634, 4725268, 9450536, 18901072]

約数ペア:

[(1, 18901072), (2, 9450536), (4, 4725268), (8, 2362634), (16, 1181317), (31, 609712), (53, 356624), (62, 304856), (106, 178312), (124, 152428), (212, 89156), (248, 76214), (424, 44578), (496, 38107), (719, 26288), (848, 22289), (1438, 13144), (1643, 11504), (2876, 6572), (3286, 5752)]