30987537

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2099}}^1$

素因数の和:2165

約数の個数: 32

約数和(自身を含む): 51072000

約数和(自身を除く): 20084463

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 2099, 2109, 4921, 6297, 14693, 14763, 39881, 44079, 77663, 119643, 232989, 279167, 543641, 837501, 1475597, 1630923, 4426791, 10329179, 30987537]

約数ペア:

[(1, 30987537), (3, 10329179), (7, 4426791), (19, 1630923), (21, 1475597), (37, 837501), (57, 543641), (111, 279167), (133, 232989), (259, 119643), (399, 77663), (703, 44079), (777, 39881), (2099, 14763), (2109, 14693), (4921, 6297)]