396981

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:67

約数の個数: 30

約数和(自身を含む): 664290

約数和(自身を除く): 267309

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 169, 261, 351, 377, 507, 783, 1053, 1131, 1521, 2349, 3393, 4563, 4901, 10179, 13689, 14703, 30537, 44109, 132327, 396981]

約数ペア:

[(1, 396981), (3, 132327), (9, 44109), (13, 30537), (27, 14703), (29, 13689), (39, 10179), (81, 4901), (87, 4563), (117, 3393), (169, 2349), (261, 1521), (351, 1131), (377, 1053), (507, 783)]