221747139

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{44879}}^1$

素因数の和:44952

約数の個数: 20

約数和(自身を含む): 336689760

約数和(自身を除く): 114942621

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 44879, 134637, 403911, 1211733, 2737619, 3635199, 8212857, 24638571, 73915713, 221747139]

約数ペア:

[(1, 221747139), (3, 73915713), (9, 24638571), (27, 8212857), (61, 3635199), (81, 2737619), (183, 1211733), (549, 403911), (1647, 134637), (4941, 44879)]