21339698408

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{285871}}^1$

素因数の和:285958

約数の個数: 64

約数和(自身を含む): 48300933120

約数和(自身を除く): 26961234712

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 43, 56, 62, 86, 124, 172, 217, 248, 301, 344, 434, 602, 868, 1204, 1333, 1736, 2408, 2666, 5332, 9331, 10664, 18662, 37324, 74648, 285871, 571742, 1143484, 2001097, 2286968, 4002194, 8004388, 8862001, 12292453, 16008776, 17724002, 24584906, 35448004, 49169812, 62034007, 70896008, 86047171, 98339624, 124068014, 172094342, 248136028, 344188684, 381066043, 496272056, 688377368, 762132086, 1524264172, 2667462301, 3048528344, 5334924602, 10669849204, 21339698408]

約数ペア:

[(1, 21339698408), (2, 10669849204), (4, 5334924602), (7, 3048528344), (8, 2667462301), (14, 1524264172), (28, 762132086), (31, 688377368), (43, 496272056), (56, 381066043), (62, 344188684), (86, 248136028), (124, 172094342), (172, 124068014), (217, 98339624), (248, 86047171), (301, 70896008), (344, 62034007), (434, 49169812), (602, 35448004), (868, 24584906), (1204, 17724002), (1333, 16008776), (1736, 12292453), (2408, 8862001), (2666, 8004388), (5332, 4002194), (9331, 2286968), (10664, 2001097), (18662, 1143484), (37324, 571742), (74648, 285871)]