20778826187

素因数分解:

$7^1\times {\mathrm{457}}^1\times {\mathrm{1109}}^1\times {\mathrm{5857}}^1$

素因数の和:7430

約数の個数: 16

約数和(自身を含む): 23824720320

約数和(自身を除く): 3045894133

約数列:

[1, 7, 457, 1109, 3199, 5857, 7763, 40999, 506813, 2676649, 3547691, 6495413, 18736543, 45467891, 2968403741, 20778826187]

約数ペア:

[(1, 20778826187), (7, 2968403741), (457, 45467891), (1109, 18736543), (3199, 6495413), (5857, 3547691), (7763, 2676649), (40999, 506813)]