208441387

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3181}}^1$

素因数の和:3259

約数の個数: 32

約数和(自身を含む): 278590464

約数和(自身を除く): 70149077

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 259, 407, 851, 1771, 2849, 3181, 5957, 9361, 22267, 34991, 65527, 73163, 117697, 244937, 512141, 804793, 823879, 1294667, 2707031, 5633551, 9062669, 18949217, 29777341, 208441387]

約数ペア:

[(1, 208441387), (7, 29777341), (11, 18949217), (23, 9062669), (37, 5633551), (77, 2707031), (161, 1294667), (253, 823879), (259, 804793), (407, 512141), (851, 244937), (1771, 117697), (2849, 73163), (3181, 65527), (5957, 34991), (9361, 22267)]