81781065

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{16673}}^1$

素因数の和:16793

約数の個数: 24

約数和(自身を含む): 143062920

約数和(自身を除く): 61281855

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4905, 16673, 50019, 83365, 150057, 250095, 750285, 1817357, 5452071, 9086785, 16356213, 27260355, 81781065]

約数ペア:

[(1, 81781065), (3, 27260355), (5, 16356213), (9, 9086785), (15, 5452071), (45, 1817357), (109, 750285), (327, 250095), (545, 150057), (981, 83365), (1635, 50019), (4905, 16673)]