21974953

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 30562560

約数和(自身を除く): 8587607

約数列:

[1, 7, 11, 13, 29, 77, 91, 143, 203, 319, 377, 757, 1001, 2233, 2639, 4147, 5299, 8327, 9841, 21953, 29029, 58289, 68887, 108251, 153671, 241483, 285389, 757757, 1690381, 1997723, 3139279, 21974953]

約数ペア:

[(1, 21974953), (7, 3139279), (11, 1997723), (13, 1690381), (29, 757757), (77, 285389), (91, 241483), (143, 153671), (203, 108251), (319, 68887), (377, 58289), (757, 29029), (1001, 21953), (2233, 9841), (2639, 8327), (4147, 5299)]