201639249

素因数分解:

$3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{17683}}^1$

素因数の和:17877

約数の個数: 24

約数和(自身を含む): 334722752

約数和(自身を除く): 133083503

約数列:

[1, 3, 7, 9, 21, 63, 181, 543, 1267, 1629, 3801, 11403, 17683, 53049, 123781, 159147, 371343, 1114029, 3200623, 9601869, 22404361, 28805607, 67213083, 201639249]

約数ペア:

[(1, 201639249), (3, 67213083), (7, 28805607), (9, 22404361), (21, 9601869), (63, 3200623), (181, 1114029), (543, 371343), (1267, 159147), (1629, 123781), (3801, 53049), (11403, 17683)]