21969105

素因数分解:

$3^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1861}}^1$

素因数の和:2656

約数の個数: 16

約数和(自身を含む): 35214144

約数和(自身を除く): 13245039

約数列:

[1, 3, 5, 15, 787, 1861, 2361, 3935, 5583, 9305, 11805, 27915, 1464607, 4393821, 7323035, 21969105]

約数ペア:

[(1, 21969105), (3, 7323035), (5, 4393821), (15, 1464607), (787, 27915), (1861, 11805), (2361, 9305), (3935, 5583)]