1812589681

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{1103}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 2212945920

約数和(自身を除く): 400356239

約数列:

[1, 7, 23, 59, 161, 173, 413, 1103, 1211, 1357, 3979, 7721, 9499, 10207, 25369, 27853, 65077, 71449, 177583, 190819, 234761, 455539, 1335733, 1496771, 1643327, 4388837, 10477397, 11258321, 30721859, 78808247, 258941383, 1812589681]

約数ペア:

[(1, 1812589681), (7, 258941383), (23, 78808247), (59, 30721859), (161, 11258321), (173, 10477397), (413, 4388837), (1103, 1643327), (1211, 1496771), (1357, 1335733), (3979, 455539), (7721, 234761), (9499, 190819), (10207, 177583), (25369, 71449), (27853, 65077)]