28721319

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 44236800

約数和(自身を除く): 15515481

約数列:

[1, 3, 11, 23, 33, 69, 79, 237, 253, 479, 759, 869, 1437, 1817, 2607, 5269, 5451, 11017, 15807, 19987, 33051, 37841, 59961, 113523, 121187, 363561, 416251, 870343, 1248753, 2611029, 9573773, 28721319]

約数ペア:

[(1, 28721319), (3, 9573773), (11, 2611029), (23, 1248753), (33, 870343), (69, 416251), (79, 363561), (237, 121187), (253, 113523), (479, 59961), (759, 37841), (869, 33051), (1437, 19987), (1817, 15807), (2607, 11017), (5269, 5451)]