21890249755

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{495647}}^1$

素因数の和:495747

約数の個数: 24

約数和(自身を含む): 29269005696

約数和(自身を除く): 7378755941

約数列:

[1, 5, 11, 55, 73, 121, 365, 605, 803, 4015, 8833, 44165, 495647, 2478235, 5452117, 27260585, 36182231, 59973287, 180911155, 299866435, 398004541, 1990022705, 4378049951, 21890249755]

約数ペア:

[(1, 21890249755), (5, 4378049951), (11, 1990022705), (55, 398004541), (73, 299866435), (121, 180911155), (365, 59973287), (605, 36182231), (803, 27260585), (4015, 5452117), (8833, 2478235), (44165, 495647)]