19702908

素因数分解:

$2^2\times 3^2\times {\mathrm{263}}^1\times {\mathrm{2081}}^1$

素因数の和:2354

約数の個数: 36

約数和(自身を含む): 50017968

約数和(自身を除く): 30315060

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 263, 526, 789, 1052, 1578, 2081, 2367, 3156, 4162, 4734, 6243, 8324, 9468, 12486, 18729, 24972, 37458, 74916, 547303, 1094606, 1641909, 2189212, 3283818, 4925727, 6567636, 9851454, 19702908]

約数ペア:

[(1, 19702908), (2, 9851454), (3, 6567636), (4, 4925727), (6, 3283818), (9, 2189212), (12, 1641909), (18, 1094606), (36, 547303), (263, 74916), (526, 37458), (789, 24972), (1052, 18729), (1578, 12486), (2081, 9468), (2367, 8324), (3156, 6243), (4162, 4734)]