20574701

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{113}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 25663680

約数和(自身を除く): 5088979

約数列:

[1, 7, 19, 37, 113, 133, 259, 703, 791, 1369, 2147, 4181, 4921, 9583, 15029, 26011, 29267, 79439, 154697, 182077, 556073, 1082879, 2939243, 20574701]

約数ペア:

[(1, 20574701), (7, 2939243), (19, 1082879), (37, 556073), (113, 182077), (133, 154697), (259, 79439), (703, 29267), (791, 26011), (1369, 15029), (2147, 9583), (4181, 4921)]