17698840

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1051}}^1$

素因数の和:1483

約数の個数: 32

約数和(自身を含む): 39954960

約数和(自身を除く): 22256120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1051, 1684, 2102, 2105, 3368, 4204, 4210, 5255, 8408, 8420, 10510, 16840, 21020, 42040, 442471, 884942, 1769884, 2212355, 3539768, 4424710, 8849420, 17698840]

約数ペア:

[(1, 17698840), (2, 8849420), (4, 4424710), (5, 3539768), (8, 2212355), (10, 1769884), (20, 884942), (40, 442471), (421, 42040), (842, 21020), (1051, 16840), (1684, 10510), (2102, 8420), (2105, 8408), (3368, 5255), (4204, 4210)]