19937538

素因数分解:

$2^1\times 3^2\times {\mathrm{223}}^1\times {\mathrm{4967}}^1$

素因数の和:5198

約数の個数: 24

約数和(自身を含む): 43400448

約数和(自身を除く): 23462910

約数列:

[1, 2, 3, 6, 9, 18, 223, 446, 669, 1338, 2007, 4014, 4967, 9934, 14901, 29802, 44703, 89406, 1107641, 2215282, 3322923, 6645846, 9968769, 19937538]

約数ペア:

[(1, 19937538), (2, 9968769), (3, 6645846), (6, 3322923), (9, 2215282), (18, 1107641), (223, 89406), (446, 44703), (669, 29802), (1338, 14901), (2007, 9934), (4014, 4967)]