28078407

素因数分解:

$3^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{971}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 50948352

約数和(自身を除く): 22869945

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 243, 357, 459, 567, 971, 1071, 1377, 1701, 2913, 3213, 4131, 6797, 8739, 9639, 16507, 20391, 26217, 28917, 49521, 61173, 78651, 115549, 148563, 183519, 235953, 346647, 445689, 550557, 1039941, 1337067, 1651671, 3119823, 4011201, 9359469, 28078407]

約数ペア:

[(1, 28078407), (3, 9359469), (7, 4011201), (9, 3119823), (17, 1651671), (21, 1337067), (27, 1039941), (51, 550557), (63, 445689), (81, 346647), (119, 235953), (153, 183519), (189, 148563), (243, 115549), (357, 78651), (459, 61173), (567, 49521), (971, 28917), (1071, 26217), (1377, 20391), (1701, 16507), (2913, 9639), (3213, 8739), (4131, 6797)]