21014505

素因数分解:

$3^3\times 5^1\times {\mathrm{155663}}^1$

素因数の和:155677

約数の個数: 16

約数和(自身を含む): 37359360

約数和(自身を除く): 16344855

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 155663, 466989, 778315, 1400967, 2334945, 4202901, 7004835, 21014505]

約数ペア:

[(1, 21014505), (3, 7004835), (5, 4202901), (9, 2334945), (15, 1400967), (27, 778315), (45, 466989), (135, 155663)]