28387149

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 44605440

約数和(自身を除く): 16218291

約数列:

[1, 3, 7, 21, 71, 79, 213, 237, 241, 497, 553, 723, 1491, 1659, 1687, 5061, 5609, 16827, 17111, 19039, 39263, 51333, 57117, 117789, 119777, 133273, 359331, 399819, 1351769, 4055307, 9462383, 28387149]

約数ペア:

[(1, 28387149), (3, 9462383), (7, 4055307), (21, 1351769), (71, 399819), (79, 359331), (213, 133273), (237, 119777), (241, 117789), (497, 57117), (553, 51333), (723, 39263), (1491, 19039), (1659, 17111), (1687, 16827), (5061, 5609)]