12961221

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 21466368

約数和(自身を除く): 8505147

約数列:

[1, 3, 7, 13, 21, 39, 91, 197, 241, 273, 591, 723, 1379, 1687, 2561, 3133, 4137, 5061, 7683, 9399, 17927, 21931, 47477, 53781, 65793, 142431, 332339, 617201, 997017, 1851603, 4320407, 12961221]

約数ペア:

[(1, 12961221), (3, 4320407), (7, 1851603), (13, 997017), (21, 617201), (39, 332339), (91, 142431), (197, 65793), (241, 53781), (273, 47477), (591, 21931), (723, 17927), (1379, 9399), (1687, 7683), (2561, 5061), (3133, 4137)]