19488590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7703}}^1$

素因数の和:7744

約数の個数: 32

約数和(自身を含む): 39937536

約数和(自身を除く): 20448946

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 7703, 15406, 38515, 77030, 84733, 169466, 177169, 354338, 423665, 847330, 885845, 1771690, 1948859, 3897718, 9744295, 19488590]

約数ペア:

[(1, 19488590), (2, 9744295), (5, 3897718), (10, 1948859), (11, 1771690), (22, 885845), (23, 847330), (46, 423665), (55, 354338), (110, 177169), (115, 169466), (230, 84733), (253, 77030), (506, 38515), (1265, 15406), (2530, 7703)]