18213855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{661}}^1$

素因数の和:847

約数の個数: 32

約数和(自身を含む): 32030208

約数和(自身を除く): 13816353

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 167, 501, 661, 835, 1837, 1983, 2505, 3305, 5511, 7271, 9185, 9915, 21813, 27555, 36355, 109065, 110387, 331161, 551935, 1214257, 1655805, 3642771, 6071285, 18213855]

約数ペア:

[(1, 18213855), (3, 6071285), (5, 3642771), (11, 1655805), (15, 1214257), (33, 551935), (55, 331161), (165, 110387), (167, 109065), (501, 36355), (661, 27555), (835, 21813), (1837, 9915), (1983, 9185), (2505, 7271), (3305, 5511)]