18278689

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 23272704

約数和(自身を除く): 4994015

約数列:

[1, 11, 13, 17, 73, 103, 143, 187, 221, 803, 949, 1133, 1241, 1339, 1751, 2431, 7519, 10439, 13651, 14729, 16133, 19261, 22763, 82709, 97747, 127823, 177463, 250393, 1075217, 1406053, 1661699, 18278689]

約数ペア:

[(1, 18278689), (11, 1661699), (13, 1406053), (17, 1075217), (73, 250393), (103, 177463), (143, 127823), (187, 97747), (221, 82709), (803, 22763), (949, 19261), (1133, 16133), (1241, 14729), (1339, 13651), (1751, 10439), (2431, 7519)]