189702919

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 235929600

約数和(自身を除く): 46226681

約数列:

[1, 7, 23, 31, 161, 191, 199, 217, 713, 1337, 1393, 4393, 4577, 4991, 5921, 6169, 30751, 32039, 38009, 41447, 43183, 136183, 141887, 266063, 874207, 953281, 993209, 1178279, 6119449, 8247953, 27100417, 189702919]

約数ペア:

[(1, 189702919), (7, 27100417), (23, 8247953), (31, 6119449), (161, 1178279), (191, 993209), (199, 953281), (217, 874207), (713, 266063), (1337, 141887), (1393, 136183), (4393, 43183), (4577, 41447), (4991, 38009), (5921, 32039), (6169, 30751)]