28791273

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{2683}}^1$

素因数の和:2773

約数の個数: 24

約数和(自身を含む): 45284448

約数和(自身を除く): 16493175

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 2683, 3577, 8049, 10731, 18781, 56343, 131467, 195859, 394401, 587577, 1371013, 4113039, 9597091, 28791273]

約数ペア:

[(1, 28791273), (3, 9597091), (7, 4113039), (21, 1371013), (49, 587577), (73, 394401), (147, 195859), (219, 131467), (511, 56343), (1533, 18781), (2683, 10731), (3577, 8049)]