20628927

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1044

約数の個数: 36

約数和(自身を含む): 34510840

約数和(自身を除く): 13881913

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 171, 209, 363, 627, 997, 1089, 1881, 2299, 2991, 6897, 8973, 10967, 18943, 20691, 32901, 56829, 98703, 120637, 170487, 208373, 361911, 625119, 1085733, 1875357, 2292103, 6876309, 20628927]

約数ペア:

[(1, 20628927), (3, 6876309), (9, 2292103), (11, 1875357), (19, 1085733), (33, 625119), (57, 361911), (99, 208373), (121, 170487), (171, 120637), (209, 98703), (363, 56829), (627, 32901), (997, 20691), (1089, 18943), (1881, 10967), (2299, 8973), (2991, 6897)]