21252756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{503}}^2$

素因数の和:1020

約数の個数: 36

約数和(自身を含む): 56786912

約数和(自身を除く): 35534156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 503, 1006, 1509, 2012, 3018, 3521, 6036, 7042, 10563, 14084, 21126, 42252, 253009, 506018, 759027, 1012036, 1518054, 1771063, 3036108, 3542126, 5313189, 7084252, 10626378, 21252756]

約数ペア:

[(1, 21252756), (2, 10626378), (3, 7084252), (4, 5313189), (6, 3542126), (7, 3036108), (12, 1771063), (14, 1518054), (21, 1012036), (28, 759027), (42, 506018), (84, 253009), (503, 42252), (1006, 21126), (1509, 14084), (2012, 10563), (3018, 7042), (3521, 6036)]