21337959

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{2003}}^1$

素因数の和:2126

約数の個数: 16

約数和(自身を含む): 29434752

約数和(自身を除く): 8096793

約数列:

[1, 3, 53, 67, 159, 201, 2003, 3551, 6009, 10653, 106159, 134201, 318477, 402603, 7112653, 21337959]

約数ペア:

[(1, 21337959), (3, 7112653), (53, 402603), (67, 318477), (159, 134201), (201, 106159), (2003, 10653), (3551, 6009)]