21593516

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^2\times {\mathrm{131}}^1$

素因数の和:207

約数の個数: 54

約数和(自身を含む): 45873828

約数和(自身を除く): 24280312

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 131, 196, 203, 262, 406, 524, 812, 841, 917, 1421, 1682, 1834, 2842, 3364, 3668, 3799, 5684, 5887, 6419, 7598, 11774, 12838, 15196, 23548, 25676, 26593, 41209, 53186, 82418, 106372, 110171, 164836, 186151, 220342, 372302, 440684, 744604, 771197, 1542394, 3084788, 5398379, 10796758, 21593516]

約数ペア:

[(1, 21593516), (2, 10796758), (4, 5398379), (7, 3084788), (14, 1542394), (28, 771197), (29, 744604), (49, 440684), (58, 372302), (98, 220342), (116, 186151), (131, 164836), (196, 110171), (203, 106372), (262, 82418), (406, 53186), (524, 41209), (812, 26593), (841, 25676), (917, 23548), (1421, 15196), (1682, 12838), (1834, 11774), (2842, 7598), (3364, 6419), (3668, 5887), (3799, 5684)]