18891704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{487}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 38327520

約数和(自身を除く): 19435816

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 373, 487, 746, 974, 1492, 1948, 2984, 3896, 4849, 6331, 9698, 12662, 19396, 25324, 38792, 50648, 181651, 363302, 726604, 1453208, 2361463, 4722926, 9445852, 18891704]

約数ペア:

[(1, 18891704), (2, 9445852), (4, 4722926), (8, 2361463), (13, 1453208), (26, 726604), (52, 363302), (104, 181651), (373, 50648), (487, 38792), (746, 25324), (974, 19396), (1492, 12662), (1948, 9698), (2984, 6331), (3896, 4849)]