19800935

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51431}}^1$

素因数の和:51454

約数の個数: 16

約数和(自身を含む): 29624832

約数和(自身を除く): 9823897

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 51431, 257155, 360017, 565741, 1800085, 2828705, 3960187, 19800935]

約数ペア:

[(1, 19800935), (5, 3960187), (7, 2828705), (11, 1800085), (35, 565741), (55, 360017), (77, 257155), (385, 51431)]