20181669876

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3570713}}^1$

素因数の和:3570880

約数の個数: 36

約数和(自身を含む): 51339725892

約数和(自身を除く): 31158056016

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 5652, 3570713, 7141426, 10712139, 14282852, 21424278, 32136417, 42848556, 64272834, 128545668, 560601941, 1121203882, 1681805823, 2242407764, 3363611646, 5045417469, 6727223292, 10090834938, 20181669876]

約数ペア:

[(1, 20181669876), (2, 10090834938), (3, 6727223292), (4, 5045417469), (6, 3363611646), (9, 2242407764), (12, 1681805823), (18, 1121203882), (36, 560601941), (157, 128545668), (314, 64272834), (471, 42848556), (628, 32136417), (942, 21424278), (1413, 14282852), (1884, 10712139), (2826, 7141426), (5652, 3570713)]