211530655

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3701}}^1$

素因数の和:3807

約数の個数: 32

約数和(自身を含む): 307058688

約数和(自身を除く): 95528033

約数列:

[1, 5, 7, 23, 35, 71, 115, 161, 355, 497, 805, 1633, 2485, 3701, 8165, 11431, 18505, 25907, 57155, 85123, 129535, 262771, 425615, 595861, 1313855, 1839397, 2979305, 6043733, 9196985, 30218665, 42306131, 211530655]

約数ペア:

[(1, 211530655), (5, 42306131), (7, 30218665), (23, 9196985), (35, 6043733), (71, 2979305), (115, 1839397), (161, 1313855), (355, 595861), (497, 425615), (805, 262771), (1633, 129535), (2485, 85123), (3701, 57155), (8165, 25907), (11431, 18505)]