21962421

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20857}}^1$

素因数の和:20882

約数の個数: 20

約数和(自身を含む): 35333452

約数和(自身を除く): 13371031

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20857, 62571, 187713, 271141, 563139, 813423, 1689417, 2440269, 7320807, 21962421]

約数ペア:

[(1, 21962421), (3, 7320807), (9, 2440269), (13, 1689417), (27, 813423), (39, 563139), (81, 271141), (117, 187713), (351, 62571), (1053, 20857)]