21180712

素因数分解:

$2^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2113}}^1$

素因数の和:2305

約数の個数: 32

約数和(自身を含む): 45662400

約数和(自身を除く): 24481688

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 179, 358, 716, 1253, 1432, 2113, 2506, 4226, 5012, 8452, 10024, 14791, 16904, 29582, 59164, 118328, 378227, 756454, 1512908, 2647589, 3025816, 5295178, 10590356, 21180712]

約数ペア:

[(1, 21180712), (2, 10590356), (4, 5295178), (7, 3025816), (8, 2647589), (14, 1512908), (28, 756454), (56, 378227), (179, 118328), (358, 59164), (716, 29582), (1253, 16904), (1432, 14791), (2113, 10024), (2506, 8452), (4226, 5012)]