20958903

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6277}}^1$

素因数の和:6343

約数の個数: 24

約数和(自身を含む): 35257248

約数和(自身を除く): 14298345

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6277, 18831, 43939, 56493, 131817, 332681, 395451, 998043, 2328767, 2994129, 6986301, 20958903]

約数ペア:

[(1, 20958903), (3, 6986301), (7, 2994129), (9, 2328767), (21, 998043), (53, 395451), (63, 332681), (159, 131817), (371, 56493), (477, 43939), (1113, 18831), (3339, 6277)]