131421388

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{5581}}^1$

素因数の和:5650

約数の個数: 36

約数和(自身を含む): 272267632

約数和(自身を除く): 140846244

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 841, 1682, 3364, 5581, 5887, 11162, 11774, 22324, 23548, 39067, 78134, 156268, 161849, 323698, 647396, 1132943, 2265886, 4531772, 4693621, 9387242, 18774484, 32855347, 65710694, 131421388]

約数ペア:

[(1, 131421388), (2, 65710694), (4, 32855347), (7, 18774484), (14, 9387242), (28, 4693621), (29, 4531772), (58, 2265886), (116, 1132943), (203, 647396), (406, 323698), (812, 161849), (841, 156268), (1682, 78134), (3364, 39067), (5581, 23548), (5887, 22324), (11162, 11774)]