20257695

素因数分解:

$3^5\times 5^1\times {\mathrm{16673}}^1$

素因数の和:16693

約数の個数: 24

約数和(自身を含む): 36416016

約数和(自身を除く): 16158321

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16673, 50019, 83365, 150057, 250095, 450171, 750285, 1350513, 2250855, 4051539, 6752565, 20257695]

約数ペア:

[(1, 20257695), (3, 6752565), (5, 4051539), (9, 2250855), (15, 1350513), (27, 750285), (45, 450171), (81, 250095), (135, 150057), (243, 83365), (405, 50019), (1215, 16673)]