161249613

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{178571}}^1$

素因数の和:178624

約数の個数: 16

約数和(自身を含む): 251429376

約数和(自身を除く): 90179763

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 178571, 535713, 1249997, 3749991, 7678553, 23035659, 53749871, 161249613]

約数ペア:

[(1, 161249613), (3, 53749871), (7, 23035659), (21, 7678553), (43, 3749991), (129, 1249997), (301, 535713), (903, 178571)]