201721955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{25583}}^1$

素因数の和:25690

約数の個数: 16

約数和(自身を含む): 257886720

約数和(自身を除く): 56164765

約数列:

[1, 5, 19, 83, 95, 415, 1577, 7885, 25583, 127915, 486077, 2123389, 2430385, 10616945, 40344391, 201721955]

約数ペア:

[(1, 201721955), (5, 40344391), (19, 10616945), (83, 2430385), (95, 2123389), (415, 486077), (1577, 127915), (7885, 25583)]