21343252

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 44843008

約数和(自身を除く): 23499756

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 67, 124, 134, 217, 268, 367, 434, 469, 734, 868, 938, 1468, 1876, 2077, 2569, 4154, 5138, 8308, 10276, 11377, 14539, 22754, 24589, 29078, 45508, 49178, 58156, 79639, 98356, 159278, 172123, 318556, 344246, 688492, 762259, 1524518, 3049036, 5335813, 10671626, 21343252]

約数ペア:

[(1, 21343252), (2, 10671626), (4, 5335813), (7, 3049036), (14, 1524518), (28, 762259), (31, 688492), (62, 344246), (67, 318556), (124, 172123), (134, 159278), (217, 98356), (268, 79639), (367, 58156), (434, 49178), (469, 45508), (734, 29078), (868, 24589), (938, 22754), (1468, 14539), (1876, 11377), (2077, 10276), (2569, 8308), (4154, 5138)]