21530955

素因数分解:

$3^1\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1801}}^1$

素因数の和:2606

約数の個数: 16

約数和(自身を含む): 34511904

約数和(自身を除く): 12980949

約数列:

[1, 3, 5, 15, 797, 1801, 2391, 3985, 5403, 9005, 11955, 27015, 1435397, 4306191, 7176985, 21530955]

約数ペア:

[(1, 21530955), (3, 7176985), (5, 4306191), (15, 1435397), (797, 27015), (1801, 11955), (2391, 9005), (3985, 5403)]