21070071

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1163}}^1$

素因数の和:1244

約数の個数: 32

約数和(自身を含む): 34640640

約数和(自身を除く): 13570569

約数列:

[1, 3, 9, 11, 27, 33, 61, 99, 183, 297, 549, 671, 1163, 1647, 2013, 3489, 6039, 10467, 12793, 18117, 31401, 38379, 70943, 115137, 212829, 345411, 638487, 780373, 1915461, 2341119, 7023357, 21070071]

約数ペア:

[(1, 21070071), (3, 7023357), (9, 2341119), (11, 1915461), (27, 780373), (33, 638487), (61, 345411), (99, 212829), (183, 115137), (297, 70943), (549, 38379), (671, 31401), (1163, 18117), (1647, 12793), (2013, 10467), (3489, 6039)]