21657691

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{419}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 24514560

約数和(自身を除く): 2856869

約数列:

[1, 11, 37, 127, 407, 419, 1397, 4609, 4699, 15503, 51689, 53213, 170533, 585343, 1968881, 21657691]

約数ペア:

[(1, 21657691), (11, 1968881), (37, 585343), (127, 170533), (407, 53213), (419, 51689), (1397, 15503), (4609, 4699)]