21423519

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10771}}^1$

素因数の和:10807

約数の個数: 24

約数和(自身を含む): 35289072

約数和(自身を除く): 13865553

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10771, 32313, 96939, 140023, 183107, 420069, 549321, 1260207, 1647963, 2380391, 7141173, 21423519]

約数ペア:

[(1, 21423519), (3, 7141173), (9, 2380391), (13, 1647963), (17, 1260207), (39, 549321), (51, 420069), (117, 183107), (153, 140023), (221, 96939), (663, 32313), (1989, 10771)]