21234070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:541

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25214570

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 55, 62, 65, 110, 130, 143, 155, 286, 310, 341, 403, 479, 682, 715, 806, 958, 1430, 1705, 2015, 2395, 3410, 4030, 4433, 4790, 5269, 6227, 8866, 10538, 12454, 14849, 22165, 26345, 29698, 31135, 44330, 52690, 62270, 68497, 74245, 136994, 148490, 163339, 193037, 326678, 342485, 386074, 684970, 816695, 965185, 1633390, 1930370, 2123407, 4246814, 10617035, 21234070]

約数ペア:

[(1, 21234070), (2, 10617035), (5, 4246814), (10, 2123407), (11, 1930370), (13, 1633390), (22, 965185), (26, 816695), (31, 684970), (55, 386074), (62, 342485), (65, 326678), (110, 193037), (130, 163339), (143, 148490), (155, 136994), (286, 74245), (310, 68497), (341, 62270), (403, 52690), (479, 44330), (682, 31135), (715, 29698), (806, 26345), (958, 22165), (1430, 14849), (1705, 12454), (2015, 10538), (2395, 8866), (3410, 6227), (4030, 5269), (4433, 4790)]