13212963

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1039}}^1$

素因数の和:1208

約数の個数: 20

約数和(自身を含む): 19882720

約数和(自身を除く): 6669757

約数列:

[1, 3, 9, 27, 81, 157, 471, 1039, 1413, 3117, 4239, 9351, 12717, 28053, 84159, 163123, 489369, 1468107, 4404321, 13212963]

約数ペア:

[(1, 13212963), (3, 4404321), (9, 1468107), (27, 489369), (81, 163123), (157, 84159), (471, 28053), (1039, 12717), (1413, 9351), (3117, 4239)]