198202221

素因数分解:

$3^5\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1069}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 342742400

約数和(自身を除く): 144540179

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 243, 327, 567, 763, 981, 1069, 1701, 2289, 2943, 3207, 6867, 7483, 8829, 9621, 20601, 22449, 26487, 28863, 61803, 67347, 86589, 116521, 185409, 202041, 259767, 349563, 606123, 815647, 1048689, 1818369, 2446941, 3146067, 7340823, 9438201, 22022469, 28314603, 66067407, 198202221]

約数ペア:

[(1, 198202221), (3, 66067407), (7, 28314603), (9, 22022469), (21, 9438201), (27, 7340823), (63, 3146067), (81, 2446941), (109, 1818369), (189, 1048689), (243, 815647), (327, 606123), (567, 349563), (763, 259767), (981, 202041), (1069, 185409), (1701, 116521), (2289, 86589), (2943, 67347), (3207, 61803), (6867, 28863), (7483, 26487), (8829, 22449), (9621, 20601)]