20796015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81553}}^1$

素因数の和:81578

約数の個数: 16

約数和(自身を含む): 35231328

約数和(自身を除く): 14435313

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81553, 244659, 407765, 1223295, 1386401, 4159203, 6932005, 20796015]

約数ペア:

[(1, 20796015), (3, 6932005), (5, 4159203), (15, 1386401), (17, 1223295), (51, 407765), (85, 244659), (255, 81553)]