19873161

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^3\times {\mathrm{79}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 37478400

約数和(自身を除く): 17605239

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 79, 99, 121, 189, 231, 237, 297, 363, 553, 693, 711, 847, 869, 1089, 1331, 1659, 2079, 2133, 2541, 2607, 3267, 3993, 4977, 6083, 7623, 7821, 9317, 9559, 11979, 14931, 18249, 22869, 23463, 27951, 28677, 35937, 54747, 66913, 83853, 86031, 105149, 164241, 200739, 251559, 258093, 315447, 602217, 736043, 946341, 1806651, 2208129, 2839023, 6624387, 19873161]

約数ペア:

[(1, 19873161), (3, 6624387), (7, 2839023), (9, 2208129), (11, 1806651), (21, 946341), (27, 736043), (33, 602217), (63, 315447), (77, 258093), (79, 251559), (99, 200739), (121, 164241), (189, 105149), (231, 86031), (237, 83853), (297, 66913), (363, 54747), (553, 35937), (693, 28677), (711, 27951), (847, 23463), (869, 22869), (1089, 18249), (1331, 14931), (1659, 11979), (2079, 9559), (2133, 9317), (2541, 7821), (2607, 7623), (3267, 6083), (3993, 4977)]