20719548

素因数分解:

$2^2\times 3^2\times {\mathrm{251}}^1\times {\mathrm{2293}}^1$

素因数の和:2554

約数の個数: 36

約数和(自身を含む): 52606008

約数和(自身を除く): 31886460

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 251, 502, 753, 1004, 1506, 2259, 2293, 3012, 4518, 4586, 6879, 9036, 9172, 13758, 20637, 27516, 41274, 82548, 575543, 1151086, 1726629, 2302172, 3453258, 5179887, 6906516, 10359774, 20719548]

約数ペア:

[(1, 20719548), (2, 10359774), (3, 6906516), (4, 5179887), (6, 3453258), (9, 2302172), (12, 1726629), (18, 1151086), (36, 575543), (251, 82548), (502, 41274), (753, 27516), (1004, 20637), (1506, 13758), (2259, 9172), (2293, 9036), (3012, 6879), (4518, 4586)]