20486739

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{743}}^1$

素因数の和:867

約数の個数: 32

約数和(自身を含む): 33997824

約数和(自身を除く): 13511085

約数列:

[1, 3, 7, 13, 21, 39, 91, 101, 273, 303, 707, 743, 1313, 2121, 2229, 3939, 5201, 9191, 9659, 15603, 27573, 28977, 67613, 75043, 202839, 225129, 525301, 975559, 1575903, 2926677, 6828913, 20486739]

約数ペア:

[(1, 20486739), (3, 6828913), (7, 2926677), (13, 1575903), (21, 975559), (39, 525301), (91, 225129), (101, 202839), (273, 75043), (303, 67613), (707, 28977), (743, 27573), (1313, 15603), (2121, 9659), (2229, 9191), (3939, 5201)]