215516511

素因数分解:

$3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{10657}}^1$

素因数の和:10780

約数の個数: 32

約数和(自身を含む): 368340480

約数和(自身を除く): 152823969

約数列:

[1, 3, 7, 9, 21, 27, 63, 107, 189, 321, 749, 963, 2247, 2889, 6741, 10657, 20223, 31971, 74599, 95913, 223797, 287739, 671391, 1140299, 2014173, 3420897, 7982093, 10262691, 23946279, 30788073, 71838837, 215516511]

約数ペア:

[(1, 215516511), (3, 71838837), (7, 30788073), (9, 23946279), (21, 10262691), (27, 7982093), (63, 3420897), (107, 2014173), (189, 1140299), (321, 671391), (749, 287739), (963, 223797), (2247, 95913), (2889, 74599), (6741, 31971), (10657, 20223)]