18881156

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{16447}}^1$

素因数の和:16499

約数の個数: 24

約数和(自身を含む): 38685696

約数和(自身を除く): 19804540

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 16447, 32894, 65788, 115129, 230258, 460516, 674327, 1348654, 2697308, 4720289, 9440578, 18881156]

約数ペア:

[(1, 18881156), (2, 9440578), (4, 4720289), (7, 2697308), (14, 1348654), (28, 674327), (41, 460516), (82, 230258), (164, 115129), (287, 65788), (574, 32894), (1148, 16447)]