21850136

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 29989864

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 79, 88, 154, 158, 308, 316, 449, 553, 616, 632, 869, 898, 1106, 1738, 1796, 2212, 3143, 3476, 3592, 4424, 4939, 6083, 6286, 6952, 9878, 12166, 12572, 19756, 24332, 25144, 34573, 35471, 39512, 48664, 69146, 70942, 138292, 141884, 248297, 276584, 283768, 390181, 496594, 780362, 993188, 1560724, 1986376, 2731267, 3121448, 5462534, 10925068, 21850136]

約数ペア:

[(1, 21850136), (2, 10925068), (4, 5462534), (7, 3121448), (8, 2731267), (11, 1986376), (14, 1560724), (22, 993188), (28, 780362), (44, 496594), (56, 390181), (77, 283768), (79, 276584), (88, 248297), (154, 141884), (158, 138292), (308, 70942), (316, 69146), (449, 48664), (553, 39512), (616, 35471), (632, 34573), (869, 25144), (898, 24332), (1106, 19756), (1738, 12572), (1796, 12166), (2212, 9878), (3143, 6952), (3476, 6286), (3592, 6083), (4424, 4939)]