211329573

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{24971}}^1$

素因数の和:25025

約数の個数: 32

約数和(自身を含む): 357998592

約数和(自身を除く): 146669019

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 8463, 24971, 74913, 174797, 324623, 524391, 774101, 973869, 2272361, 2322303, 5418707, 6817083, 10063313, 16256121, 30189939, 70443191, 211329573]

約数ペア:

[(1, 211329573), (3, 70443191), (7, 30189939), (13, 16256121), (21, 10063313), (31, 6817083), (39, 5418707), (91, 2322303), (93, 2272361), (217, 973869), (273, 774101), (403, 524391), (651, 324623), (1209, 174797), (2821, 74913), (8463, 24971)]