31278009

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{283}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 50529280

約数和(自身を除く): 19251271

約数列:

[1, 3, 7, 19, 21, 57, 133, 277, 283, 399, 831, 849, 1939, 1981, 5263, 5377, 5817, 5943, 15789, 16131, 36841, 37639, 78391, 110523, 112917, 235173, 548737, 1489429, 1646211, 4468287, 10426003, 31278009]

約数ペア:

[(1, 31278009), (3, 10426003), (7, 4468287), (19, 1646211), (21, 1489429), (57, 548737), (133, 235173), (277, 112917), (283, 110523), (399, 78391), (831, 37639), (849, 36841), (1939, 16131), (1981, 15789), (5263, 5943), (5377, 5817)]