245616477

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 352926720

約数和(自身を除く): 107310243

約数列:

[1, 3, 19, 57, 71, 137, 213, 411, 443, 1329, 1349, 2603, 4047, 7809, 8417, 9727, 25251, 29181, 31453, 60691, 94359, 182073, 184813, 554439, 597607, 1153129, 1792821, 3459387, 4309061, 12927183, 81872159, 245616477]

約数ペア:

[(1, 245616477), (3, 81872159), (19, 12927183), (57, 4309061), (71, 3459387), (137, 1792821), (213, 1153129), (411, 597607), (443, 554439), (1329, 184813), (1349, 182073), (2603, 94359), (4047, 60691), (7809, 31453), (8417, 29181), (9727, 25251)]