21130116917

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6275651}}^1$

素因数の和:6275708

約数の個数: 16

約数和(自身を含む): 26709174912

約数和(自身を除く): 5579057995

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 6275651, 43929557, 81583463, 232199087, 571084241, 1625393609, 3018588131, 21130116917]

約数ペア:

[(1, 21130116917), (7, 3018588131), (13, 1625393609), (37, 571084241), (91, 232199087), (259, 81583463), (481, 43929557), (3367, 6275651)]