198984951

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15581}}^1$

素因数の和:15644

約数の個数: 32

約数和(自身を含む): 329091840

約数和(自身を除く): 130106889

約数列:

[1, 3, 9, 11, 27, 33, 43, 99, 129, 297, 387, 473, 1161, 1419, 4257, 12771, 15581, 46743, 140229, 171391, 420687, 514173, 669983, 1542519, 2009949, 4627557, 6029847, 7369813, 18089541, 22109439, 66328317, 198984951]

約数ペア:

[(1, 198984951), (3, 66328317), (9, 22109439), (11, 18089541), (27, 7369813), (33, 6029847), (43, 4627557), (99, 2009949), (129, 1542519), (297, 669983), (387, 514173), (473, 420687), (1161, 171391), (1419, 140229), (4257, 46743), (12771, 15581)]