21992992

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2089}}^1$

素因数の和:2153

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 28568288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 2089, 2632, 4178, 5264, 8356, 10528, 14623, 16712, 29246, 33424, 58492, 66848, 98183, 116984, 196366, 233968, 392732, 467936, 687281, 785464, 1374562, 1570928, 2749124, 3141856, 5498248, 10996496, 21992992]

約数ペア:

[(1, 21992992), (2, 10996496), (4, 5498248), (7, 3141856), (8, 2749124), (14, 1570928), (16, 1374562), (28, 785464), (32, 687281), (47, 467936), (56, 392732), (94, 233968), (112, 196366), (188, 116984), (224, 98183), (329, 66848), (376, 58492), (658, 33424), (752, 29246), (1316, 16712), (1504, 14623), (2089, 10528), (2632, 8356), (4178, 5264)]