28091427

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2393}}^1$

素因数の和:2459

約数の個数: 32

約数和(自身を含む): 47190528

約数和(自身を除く): 19099101

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 2393, 3913, 7179, 11739, 16751, 31109, 50253, 93327, 102899, 217763, 308697, 653289, 720293, 1337687, 2160879, 4013061, 9363809, 28091427]

約数ペア:

[(1, 28091427), (3, 9363809), (7, 4013061), (13, 2160879), (21, 1337687), (39, 720293), (43, 653289), (91, 308697), (129, 217763), (273, 102899), (301, 93327), (559, 50253), (903, 31109), (1677, 16751), (2393, 11739), (3913, 7179)]