20119749

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 30234624

約数和(自身を除く): 10114875

約数列:

[1, 3, 13, 37, 39, 73, 111, 191, 219, 481, 573, 949, 1443, 2483, 2701, 2847, 7067, 7449, 8103, 13943, 21201, 35113, 41829, 91871, 105339, 181259, 275613, 515891, 543777, 1547673, 6706583, 20119749]

約数ペア:

[(1, 20119749), (3, 6706583), (13, 1547673), (37, 543777), (39, 515891), (73, 275613), (111, 181259), (191, 105339), (219, 91871), (481, 41829), (573, 35113), (949, 21201), (1443, 13943), (2483, 8103), (2701, 7449), (2847, 7067)]