20489763

素因数分解:

$3^1\times 7^1\times {\mathrm{967}}^1\times {\mathrm{1009}}^1$

素因数の和:1986

約数の個数: 16

約数和(自身を含む): 31285760

約数和(自身を除く): 10795997

約数列:

[1, 3, 7, 21, 967, 1009, 2901, 3027, 6769, 7063, 20307, 21189, 975703, 2927109, 6829921, 20489763]

約数ペア:

[(1, 20489763), (3, 6829921), (7, 2927109), (21, 975703), (967, 21189), (1009, 20307), (2901, 7063), (3027, 6769)]