21103845

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{200989}}^1$

素因数の和:201004

約数の個数: 16

約数和(自身を含む): 38590080

約数和(自身を除く): 17486235

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 200989, 602967, 1004945, 1406923, 3014835, 4220769, 7034615, 21103845]

約数ペア:

[(1, 21103845), (3, 7034615), (5, 4220769), (7, 3014835), (15, 1406923), (21, 1004945), (35, 602967), (105, 200989)]