19887195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{467}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 33965568

約数和(自身を除く): 14078373

約数列:

[1, 3, 5, 15, 17, 51, 85, 167, 255, 467, 501, 835, 1401, 2335, 2505, 2839, 7005, 7939, 8517, 14195, 23817, 39695, 42585, 77989, 119085, 233967, 389945, 1169835, 1325813, 3977439, 6629065, 19887195]

約数ペア:

[(1, 19887195), (3, 6629065), (5, 3977439), (15, 1325813), (17, 1169835), (51, 389945), (85, 233967), (167, 119085), (255, 77989), (467, 42585), (501, 39695), (835, 23817), (1401, 14195), (2335, 8517), (2505, 7939), (2839, 7005)]