20153445

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{571}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 34978944

約数和(自身を除く): 14825499

約数列:

[1, 3, 5, 13, 15, 39, 65, 181, 195, 543, 571, 905, 1713, 2353, 2715, 2855, 7059, 7423, 8565, 11765, 22269, 35295, 37115, 103351, 111345, 310053, 516755, 1343563, 1550265, 4030689, 6717815, 20153445]

約数ペア:

[(1, 20153445), (3, 6717815), (5, 4030689), (13, 1550265), (15, 1343563), (39, 516755), (65, 310053), (181, 111345), (195, 103351), (543, 37115), (571, 35295), (905, 22269), (1713, 11765), (2353, 8565), (2715, 7423), (2855, 7059)]