21990688

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{9679}}^1$

素因数の和:9760

約数の個数: 24

約数和(自身を含む): 43908480

約数和(自身を除く): 21917792

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9679, 19358, 38716, 77432, 154864, 309728, 687209, 1374418, 2748836, 5497672, 10995344, 21990688]

約数ペア:

[(1, 21990688), (2, 10995344), (4, 5497672), (8, 2748836), (16, 1374418), (32, 687209), (71, 309728), (142, 154864), (284, 77432), (568, 38716), (1136, 19358), (2272, 9679)]