20180959851

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1\times {\mathrm{20287}}^1$

素因数の和:21435

約数の個数: 32

約数和(自身を含む): 30266449920

約数和(自身を除く): 10085490069

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 1109, 3327, 14417, 20287, 25507, 43251, 60861, 76521, 263731, 331591, 466601, 791193, 994773, 1399803, 6065813, 18197439, 22498283, 67494849, 292477679, 517460509, 877433037, 1552381527, 6726986617, 20180959851]

約数ペア:

[(1, 20180959851), (3, 6726986617), (13, 1552381527), (23, 877433037), (39, 517460509), (69, 292477679), (299, 67494849), (897, 22498283), (1109, 18197439), (3327, 6065813), (14417, 1399803), (20287, 994773), (25507, 791193), (43251, 466601), (60861, 331591), (76521, 263731)]