667641

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 32

約数和(自身を含む): 1088640

約数和(自身を除く): 420999

約数列:

[1, 3, 13, 17, 19, 39, 51, 53, 57, 159, 221, 247, 323, 663, 689, 741, 901, 969, 1007, 2067, 2703, 3021, 4199, 11713, 12597, 13091, 17119, 35139, 39273, 51357, 222547, 667641]

約数ペア:

[(1, 667641), (3, 222547), (13, 51357), (17, 39273), (19, 35139), (39, 17119), (51, 13091), (53, 12597), (57, 11713), (159, 4199), (221, 3021), (247, 2703), (323, 2067), (663, 1007), (689, 969), (741, 901)]