21670971

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{60703}}^1$

素因数の和:60730

約数の個数: 16

約数和(自身を含む): 34965504

約数和(自身を除く): 13294533

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 60703, 182109, 424921, 1031951, 1274763, 3095853, 7223657, 21670971]

約数ペア:

[(1, 21670971), (3, 7223657), (7, 3095853), (17, 1274763), (21, 1031951), (51, 424921), (119, 182109), (357, 60703)]