20976774

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 52276224

約数和(自身を除く): 31299450

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 103, 182, 206, 273, 309, 373, 546, 618, 721, 746, 1119, 1339, 1442, 2163, 2238, 2611, 2678, 4017, 4326, 4849, 5222, 7833, 8034, 9373, 9698, 14547, 15666, 18746, 28119, 29094, 33943, 38419, 56238, 67886, 76838, 101829, 115257, 203658, 230514, 268933, 499447, 537866, 806799, 998894, 1498341, 1613598, 2996682, 3496129, 6992258, 10488387, 20976774]

約数ペア:

[(1, 20976774), (2, 10488387), (3, 6992258), (6, 3496129), (7, 2996682), (13, 1613598), (14, 1498341), (21, 998894), (26, 806799), (39, 537866), (42, 499447), (78, 268933), (91, 230514), (103, 203658), (182, 115257), (206, 101829), (273, 76838), (309, 67886), (373, 56238), (546, 38419), (618, 33943), (721, 29094), (746, 28119), (1119, 18746), (1339, 15666), (1442, 14547), (2163, 9698), (2238, 9373), (2611, 8034), (2678, 7833), (4017, 5222), (4326, 4849)]