20143521

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 32065956

約数和(自身を除く): 11922435

約数列:

[1, 3, 9, 17, 31, 51, 93, 137, 153, 279, 411, 527, 961, 1233, 1581, 2329, 2883, 4247, 4743, 6987, 8649, 12741, 16337, 20961, 38223, 49011, 72199, 131657, 147033, 216597, 394971, 649791, 1184913, 2238169, 6714507, 20143521]

約数ペア:

[(1, 20143521), (3, 6714507), (9, 2238169), (17, 1184913), (31, 649791), (51, 394971), (93, 216597), (137, 147033), (153, 131657), (279, 72199), (411, 49011), (527, 38223), (961, 20961), (1233, 16337), (1581, 12741), (2329, 8649), (2883, 6987), (4247, 4743)]