21510776

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12391}}^1$

素因数の和:12435

約数の個数: 32

約数和(自身を含む): 47585280

約数和(自身を除く): 26074504

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12391, 24782, 49564, 86737, 99128, 173474, 346948, 384121, 693896, 768242, 1536484, 2688847, 3072968, 5377694, 10755388, 21510776]

約数ペア:

[(1, 21510776), (2, 10755388), (4, 5377694), (7, 3072968), (8, 2688847), (14, 1536484), (28, 768242), (31, 693896), (56, 384121), (62, 346948), (124, 173474), (217, 99128), (248, 86737), (434, 49564), (868, 24782), (1736, 12391)]