21508713578891

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1019}}^1\times {\mathrm{14057}}^1\times {\mathrm{19501}}^1$

素因数の和:34595

約数の個数: 32

約数和(自身を含む): 26845660638720

約数和(自身を除く): 5336947059829

約数列:

[1, 7, 11, 77, 1019, 7133, 11209, 14057, 19501, 78463, 98399, 136507, 154627, 214511, 1082389, 1501577, 14324083, 19871519, 100268581, 139100633, 157564913, 218586709, 274125557, 1102954391, 1530106963, 1918878899, 3015381127, 21107667889, 279333942583, 1955337598081, 3072673368413, 21508713578891]

約数ペア:

[(1, 21508713578891), (7, 3072673368413), (11, 1955337598081), (77, 279333942583), (1019, 21107667889), (7133, 3015381127), (11209, 1918878899), (14057, 1530106963), (19501, 1102954391), (78463, 274125557), (98399, 218586709), (136507, 157564913), (154627, 139100633), (214511, 100268581), (1082389, 19871519), (1501577, 14324083)]