21016527

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52673}}^1$

素因数の和:52702

約数の個数: 16

約数和(自身を含む): 33711360

約数和(自身を除く): 12694833

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52673, 158019, 368711, 1000787, 1106133, 3002361, 7005509, 21016527]

約数ペア:

[(1, 21016527), (3, 7005509), (7, 3002361), (19, 1106133), (21, 1000787), (57, 368711), (133, 158019), (399, 52673)]