21488766

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8887}}^1$

素因数の和:8936

約数の個数: 32

約数和(自身を含む): 47781888

約数和(自身を除く): 26293122

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8887, 17774, 26661, 53322, 115531, 231062, 275497, 346593, 550994, 693186, 826491, 1652982, 3581461, 7162922, 10744383, 21488766]

約数ペア:

[(1, 21488766), (2, 10744383), (3, 7162922), (6, 3581461), (13, 1652982), (26, 826491), (31, 693186), (39, 550994), (62, 346593), (78, 275497), (93, 231062), (186, 115531), (403, 53322), (806, 26661), (1209, 17774), (2418, 8887)]