1820891809

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1\times {\mathrm{263}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 2122306560

約数和(自身を除く): 301414751

約数列:

[1, 11, 19, 157, 209, 211, 263, 1727, 2321, 2893, 2983, 4009, 4997, 32813, 33127, 41291, 44099, 54967, 55493, 364397, 454201, 610423, 629413, 784529, 1054367, 6923543, 8629819, 8712401, 11598037, 95836411, 165535619, 1820891809]

約数ペア:

[(1, 1820891809), (11, 165535619), (19, 95836411), (157, 11598037), (209, 8712401), (211, 8629819), (263, 6923543), (1727, 1054367), (2321, 784529), (2893, 629413), (2983, 610423), (4009, 454201), (4997, 364397), (32813, 55493), (33127, 54967), (41291, 44099)]