199754913

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 287884800

約数和(自身を除く): 88129887

約数列:

[1, 3, 17, 51, 97, 149, 271, 291, 447, 813, 1649, 2533, 4607, 4947, 7599, 13821, 14453, 26287, 40379, 43359, 78861, 121137, 245701, 446879, 686443, 737103, 1340637, 2059329, 3916763, 11750289, 66584971, 199754913]

約数ペア:

[(1, 199754913), (3, 66584971), (17, 11750289), (51, 3916763), (97, 2059329), (149, 1340637), (271, 737103), (291, 686443), (447, 446879), (813, 245701), (1649, 121137), (2533, 78861), (4607, 43359), (4947, 40379), (7599, 26287), (13821, 14453)]