21073939208

素因数分解:

$2^3\times 7^3\times {\mathrm{199}}^1\times {\mathrm{38593}}^1$

素因数の和:38819

約数の個数: 64

約数和(自身を含む): 46312800000

約数和(自身を除く): 25238860792

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 199, 343, 392, 398, 686, 796, 1372, 1393, 1592, 2744, 2786, 5572, 9751, 11144, 19502, 38593, 39004, 68257, 77186, 78008, 136514, 154372, 270151, 273028, 308744, 540302, 546056, 1080604, 1891057, 2161208, 3782114, 7564228, 7680007, 13237399, 15128456, 15360014, 26474798, 30720028, 52949596, 53760049, 61440056, 105899192, 107520098, 215040196, 376320343, 430080392, 752640686, 1505281372, 2634242401, 3010562744, 5268484802, 10536969604, 21073939208]

約数ペア:

[(1, 21073939208), (2, 10536969604), (4, 5268484802), (7, 3010562744), (8, 2634242401), (14, 1505281372), (28, 752640686), (49, 430080392), (56, 376320343), (98, 215040196), (196, 107520098), (199, 105899192), (343, 61440056), (392, 53760049), (398, 52949596), (686, 30720028), (796, 26474798), (1372, 15360014), (1393, 15128456), (1592, 13237399), (2744, 7680007), (2786, 7564228), (5572, 3782114), (9751, 2161208), (11144, 1891057), (19502, 1080604), (38593, 546056), (39004, 540302), (68257, 308744), (77186, 273028), (78008, 270151), (136514, 154372)]