19958898981

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4379833}}^1$

素因数の和:4379881

約数の個数: 24

約数和(自身を含む): 31955268864

約数和(自身を除く): 11996369883

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 4379833, 13139499, 30658831, 91976493, 135774823, 214611817, 407324469, 643835451, 950423761, 2851271283, 6652966327, 19958898981]

約数ペア:

[(1, 19958898981), (3, 6652966327), (7, 2851271283), (21, 950423761), (31, 643835451), (49, 407324469), (93, 214611817), (147, 135774823), (217, 91976493), (651, 30658831), (1519, 13139499), (4557, 4379833)]