19922721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{72977}}^1$

素因数の和:73000

約数の個数: 16

約数和(自身を含む): 32694144

約数和(自身を除く): 12771423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 72977, 218931, 510839, 948701, 1532517, 2846103, 6640907, 19922721]

約数ペア:

[(1, 19922721), (3, 6640907), (7, 2846103), (13, 1532517), (21, 948701), (39, 510839), (91, 218931), (273, 72977)]