71390403

素因数分解:

$3^4\times 7^2\times {\mathrm{17987}}^1$

素因数の和:18013

約数の個数: 30

約数和(自身を含む): 124063236

約数和(自身を除く): 52672833

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 17987, 53961, 125909, 161883, 377727, 485649, 881363, 1133181, 1456947, 2644089, 3399543, 7932267, 10198629, 23796801, 71390403]

約数ペア:

[(1, 71390403), (3, 23796801), (7, 10198629), (9, 7932267), (21, 3399543), (27, 2644089), (49, 1456947), (63, 1133181), (81, 881363), (147, 485649), (189, 377727), (441, 161883), (567, 125909), (1323, 53961), (3969, 17987)]