20879817

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6673}}^1$

素因数の和:6832

約数の個数: 16

約数和(自身を含む): 32035200

約数和(自身を除く): 11155383

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6673, 20019, 46711, 140133, 994277, 2982831, 6959939, 20879817]

約数ペア:

[(1, 20879817), (3, 6959939), (7, 2982831), (21, 994277), (149, 140133), (447, 46711), (1043, 20019), (3129, 6673)]