221949

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 396032

約数和(自身を除く): 174083

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 271, 273, 813, 819, 1897, 2439, 3523, 5691, 10569, 17073, 24661, 31707, 73983, 221949]

約数ペア:

[(1, 221949), (3, 73983), (7, 31707), (9, 24661), (13, 17073), (21, 10569), (39, 5691), (63, 3523), (91, 2439), (117, 1897), (271, 819), (273, 813)]