21428517

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{38197}}^1$

素因数の和:38228

約数の個数: 16

約数和(自身を含む): 33003072

約数和(自身を除く): 11574555

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 38197, 114591, 420167, 649349, 1260501, 1948047, 7142839, 21428517]

約数ペア:

[(1, 21428517), (3, 7142839), (11, 1948047), (17, 1260501), (33, 649349), (51, 420167), (187, 114591), (561, 38197)]