21058971

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{6163}}^1$

素因数の和:6250

約数の個数: 16

約数和(自身を含む): 30178944

約数和(自身を除く): 9119973

約数列:

[1, 3, 17, 51, 67, 201, 1139, 3417, 6163, 18489, 104771, 314313, 412921, 1238763, 7019657, 21058971]

約数ペア:

[(1, 21058971), (3, 7019657), (17, 1238763), (51, 412921), (67, 314313), (201, 104771), (1139, 18489), (3417, 6163)]