20521353

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{509}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 27907200

約数和(自身を除く): 7385847

約数列:

[1, 3, 89, 151, 267, 453, 509, 1527, 13439, 40317, 45301, 76859, 135903, 230577, 6840451, 20521353]

約数ペア:

[(1, 20521353), (3, 6840451), (89, 230577), (151, 135903), (267, 76859), (453, 45301), (509, 40317), (1527, 13439)]