20421531

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{797}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 33069120

約数和(自身を除く): 12647589

約数列:

[1, 3, 9, 13, 27, 39, 73, 117, 219, 351, 657, 797, 949, 1971, 2391, 2847, 7173, 8541, 10361, 21519, 25623, 31083, 58181, 93249, 174543, 279747, 523629, 756353, 1570887, 2269059, 6807177, 20421531]

約数ペア:

[(1, 20421531), (3, 6807177), (9, 2269059), (13, 1570887), (27, 756353), (39, 523629), (73, 279747), (117, 174543), (219, 93249), (351, 58181), (657, 31083), (797, 25623), (949, 21519), (1971, 10361), (2391, 8541), (2847, 7173)]