285909561

素因数分解:

$3^3\times 7^2\times {\mathrm{216107}}^1$

素因数の和:216130

約数の個数: 24

約数和(自身を含む): 492726240

約数和(自身を除く): 206816679

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 216107, 648321, 1512749, 1944963, 4538247, 5834889, 10589243, 13614741, 31767729, 40844223, 95303187, 285909561]

約数ペア:

[(1, 285909561), (3, 95303187), (7, 40844223), (9, 31767729), (21, 13614741), (27, 10589243), (49, 5834889), (63, 4538247), (147, 1944963), (189, 1512749), (441, 648321), (1323, 216107)]