215511129

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 342014400

約数和(自身を除く): 126503271

約数列:

[1, 3, 9, 19, 41, 57, 59, 123, 171, 177, 369, 521, 531, 779, 1121, 1563, 2337, 2419, 3363, 4689, 7011, 7257, 9899, 10089, 21361, 21771, 29697, 30739, 45961, 64083, 89091, 92217, 137883, 192249, 276651, 405859, 413649, 584041, 1217577, 1260299, 1752123, 3652731, 3780897, 5256369, 11342691, 23945681, 71837043, 215511129]

約数ペア:

[(1, 215511129), (3, 71837043), (9, 23945681), (19, 11342691), (41, 5256369), (57, 3780897), (59, 3652731), (123, 1752123), (171, 1260299), (177, 1217577), (369, 584041), (521, 413649), (531, 405859), (779, 276651), (1121, 192249), (1563, 137883), (2337, 92217), (2419, 89091), (3363, 64083), (4689, 45961), (7011, 30739), (7257, 29697), (9899, 21771), (10089, 21361)]