20313783

素因数分解:

$3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:724

約数の個数: 36

約数和(自身を含む): 34655088

約数和(自身を除く): 14341305

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 147, 219, 441, 511, 631, 657, 1533, 1893, 3577, 4417, 4599, 5679, 10731, 13251, 30919, 32193, 39753, 46063, 92757, 138189, 278271, 322441, 414567, 967323, 2257087, 2901969, 6771261, 20313783]

約数ペア:

[(1, 20313783), (3, 6771261), (7, 2901969), (9, 2257087), (21, 967323), (49, 414567), (63, 322441), (73, 278271), (147, 138189), (219, 92757), (441, 46063), (511, 39753), (631, 32193), (657, 30919), (1533, 13251), (1893, 10731), (3577, 5679), (4417, 4599)]