19890814

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{2389}}^1$

素因数の和:2595

約数の個数: 16

約数和(自身を含む): 31318560

約数和(自身を除く): 11427746

約数列:

[1, 2, 23, 46, 181, 362, 2389, 4163, 4778, 8326, 54947, 109894, 432409, 864818, 9945407, 19890814]

約数ペア:

[(1, 19890814), (2, 9945407), (23, 864818), (46, 432409), (181, 109894), (362, 54947), (2389, 8326), (4163, 4778)]