19938968

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4507}}^1$

素因数の和:4599

約数の個数: 32

約数和(自身を含む): 43276800

約数和(自身を除く): 23337832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 4507, 9014, 18028, 31549, 36056, 63098, 126196, 252392, 356053, 712106, 1424212, 2492371, 2848424, 4984742, 9969484, 19938968]

約数ペア:

[(1, 19938968), (2, 9969484), (4, 4984742), (7, 2848424), (8, 2492371), (14, 1424212), (28, 712106), (56, 356053), (79, 252392), (158, 126196), (316, 63098), (553, 36056), (632, 31549), (1106, 18028), (2212, 9014), (4424, 4507)]