15721708065

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{21390079}}^1$

素因数の和:21390101

約数の個数: 24

約数和(自身を含む): 29261629440

約数和(自身を除く): 13539921375

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 21390079, 64170237, 106950395, 149730553, 320851185, 449191659, 748652765, 1048113871, 2245958295, 3144341613, 5240569355, 15721708065]

約数ペア:

[(1, 15721708065), (3, 5240569355), (5, 3144341613), (7, 2245958295), (15, 1048113871), (21, 748652765), (35, 449191659), (49, 320851185), (105, 149730553), (147, 106950395), (245, 64170237), (735, 21390079)]