221400543

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26161}}^1$

素因数の和:26215

約数の個数: 32

約数和(自身を含む): 375058432

約数和(自身を除く): 153657889

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 8463, 26161, 78483, 183127, 340093, 549381, 810991, 1020279, 2380651, 2432973, 5676937, 7141953, 10542883, 17030811, 31628649, 73800181, 221400543]

約数ペア:

[(1, 221400543), (3, 73800181), (7, 31628649), (13, 17030811), (21, 10542883), (31, 7141953), (39, 5676937), (91, 2432973), (93, 2380651), (217, 1020279), (273, 810991), (403, 549381), (651, 340093), (1209, 183127), (2821, 78483), (8463, 26161)]