21116835

素因数分解:

$3^3\times 5^1\times {\mathrm{156421}}^1$

素因数の和:156435

約数の個数: 16

約数和(自身を含む): 37541280

約数和(自身を除く): 16424445

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 156421, 469263, 782105, 1407789, 2346315, 4223367, 7038945, 21116835]

約数ペア:

[(1, 21116835), (3, 7038945), (5, 4223367), (9, 2346315), (15, 1407789), (27, 782105), (45, 469263), (135, 156421)]