19754384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1301}}^1$

素因数の和:1395

約数の個数: 40

約数和(自身を含む): 41815032

約数和(自身を除く): 22060648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 73, 104, 146, 208, 292, 584, 949, 1168, 1301, 1898, 2602, 3796, 5204, 7592, 10408, 15184, 16913, 20816, 33826, 67652, 94973, 135304, 189946, 270608, 379892, 759784, 1234649, 1519568, 2469298, 4938596, 9877192, 19754384]

約数ペア:

[(1, 19754384), (2, 9877192), (4, 4938596), (8, 2469298), (13, 1519568), (16, 1234649), (26, 759784), (52, 379892), (73, 270608), (104, 189946), (146, 135304), (208, 94973), (292, 67652), (584, 33826), (949, 20816), (1168, 16913), (1301, 15184), (1898, 10408), (2602, 7592), (3796, 5204)]