21075159

素因数分解:

$3^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{2843}}^1$

素因数の和:3206

約数の個数: 16

約数和(自身を含む): 32216832

約数和(自身を除く): 11141673

約数列:

[1, 3, 7, 21, 353, 1059, 2471, 2843, 7413, 8529, 19901, 59703, 1003579, 3010737, 7025053, 21075159]

約数ペア:

[(1, 21075159), (3, 7025053), (7, 3010737), (21, 1003579), (353, 59703), (1059, 19901), (2471, 8529), (2843, 7413)]