19715851905

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1109}}^1\times {\mathrm{16693}}^1$

素因数の和:17881

約数の個数: 32

約数和(自身を含む): 32020427520

約数和(自身を除く): 12304575615

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 1109, 3327, 5545, 16635, 16693, 50079, 78739, 83465, 236217, 250395, 393695, 1181085, 1185203, 3555609, 5926015, 17778045, 18512537, 55537611, 92562685, 277688055, 1314390127, 3943170381, 6571950635, 19715851905]

約数ペア:

[(1, 19715851905), (3, 6571950635), (5, 3943170381), (15, 1314390127), (71, 277688055), (213, 92562685), (355, 55537611), (1065, 18512537), (1109, 17778045), (3327, 5926015), (5545, 3555609), (16635, 1185203), (16693, 1181085), (50079, 393695), (78739, 250395), (83465, 236217)]