21812168

素因数分解:

$2^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1481}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 46949760

約数和(自身を除く): 25137592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 263, 526, 1052, 1481, 1841, 2104, 2962, 3682, 5924, 7364, 10367, 11848, 14728, 20734, 41468, 82936, 389503, 779006, 1558012, 2726521, 3116024, 5453042, 10906084, 21812168]

約数ペア:

[(1, 21812168), (2, 10906084), (4, 5453042), (7, 3116024), (8, 2726521), (14, 1558012), (28, 779006), (56, 389503), (263, 82936), (526, 41468), (1052, 20734), (1481, 14728), (1841, 11848), (2104, 10367), (2962, 7364), (3682, 5924)]