20400681

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{8597}}^1$

素因数の和:8720

約数の個数: 16

約数和(自身を含む): 31365504

約数和(自身を除く): 10964823

約数列:

[1, 3, 7, 21, 113, 339, 791, 2373, 8597, 25791, 60179, 180537, 971461, 2914383, 6800227, 20400681]

約数ペア:

[(1, 20400681), (3, 6800227), (7, 2914383), (21, 971461), (113, 180537), (339, 60179), (791, 25791), (2373, 8597)]