21971936

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2087}}^1$

素因数の和:2151

約数の個数: 48

約数和(自身を含む): 50512896

約数和(自身を除く): 28540960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 2087, 2632, 4174, 5264, 8348, 10528, 14609, 16696, 29218, 33392, 58436, 66784, 98089, 116872, 196178, 233744, 392356, 467488, 686623, 784712, 1373246, 1569424, 2746492, 3138848, 5492984, 10985968, 21971936]

約数ペア:

[(1, 21971936), (2, 10985968), (4, 5492984), (7, 3138848), (8, 2746492), (14, 1569424), (16, 1373246), (28, 784712), (32, 686623), (47, 467488), (56, 392356), (94, 233744), (112, 196178), (188, 116872), (224, 98089), (329, 66784), (376, 58436), (658, 33392), (752, 29218), (1316, 16696), (1504, 14609), (2087, 10528), (2632, 8348), (4174, 5264)]