19780514

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{16187}}^1$

素因数の和:16249

約数の個数: 16

約数和(自身を含む): 32635008

約数和(自身を除く): 12854494

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 16187, 32374, 210431, 420862, 760789, 1521578, 9890257, 19780514]

約数ペア:

[(1, 19780514), (2, 9890257), (13, 1521578), (26, 760789), (47, 420862), (94, 210431), (611, 32374), (1222, 16187)]