18556844

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 36

約数和(自身を含む): 34948368

約数和(自身を除く): 16391524

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 181, 284, 361, 362, 722, 724, 1349, 1444, 2698, 3439, 5396, 6878, 12851, 13756, 25631, 25702, 51262, 51404, 65341, 102524, 130682, 244169, 261364, 488338, 976676, 4639211, 9278422, 18556844]

約数ペア:

[(1, 18556844), (2, 9278422), (4, 4639211), (19, 976676), (38, 488338), (71, 261364), (76, 244169), (142, 130682), (181, 102524), (284, 65341), (361, 51404), (362, 51262), (722, 25702), (724, 25631), (1349, 13756), (1444, 12851), (2698, 6878), (3439, 5396)]