21459519

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21481}}^1$

素因数の和:21527

約数の個数: 16

約数和(自身を含む): 32652640

約数和(自身を除く): 11193121

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21481, 64443, 193329, 579987, 794797, 2384391, 7153173, 21459519]

約数ペア:

[(1, 21459519), (3, 7153173), (9, 2384391), (27, 794797), (37, 579987), (111, 193329), (333, 64443), (999, 21481)]