21638376

素因数分解:

$2^3\times 3^2\times {\mathrm{149}}^1\times {\mathrm{2017}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 59026500

約数和(自身を除く): 37388124

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 149, 298, 447, 596, 894, 1192, 1341, 1788, 2017, 2682, 3576, 4034, 5364, 6051, 8068, 10728, 12102, 16136, 18153, 24204, 36306, 48408, 72612, 145224, 300533, 601066, 901599, 1202132, 1803198, 2404264, 2704797, 3606396, 5409594, 7212792, 10819188, 21638376]

約数ペア:

[(1, 21638376), (2, 10819188), (3, 7212792), (4, 5409594), (6, 3606396), (8, 2704797), (9, 2404264), (12, 1803198), (18, 1202132), (24, 901599), (36, 601066), (72, 300533), (149, 145224), (298, 72612), (447, 48408), (596, 36306), (894, 24204), (1192, 18153), (1341, 16136), (1788, 12102), (2017, 10728), (2682, 8068), (3576, 6051), (4034, 5364)]