20008401

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{17977}}^1$

素因数の和:18040

約数の個数: 16

約数和(自身を含む): 31065984

約数和(自身を除く): 11057583

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 17977, 53931, 125839, 377517, 952781, 2858343, 6669467, 20008401]

約数ペア:

[(1, 20008401), (3, 6669467), (7, 2858343), (21, 952781), (53, 377517), (159, 125839), (371, 53931), (1113, 17977)]