69990921

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:511

約数の個数: 96

約数和(自身を含む): 144039168

約数和(自身を除く): 74048247

約数列:

[1, 3, 7, 9, 11, 13, 17, 21, 33, 39, 51, 63, 77, 91, 99, 117, 119, 143, 153, 187, 221, 231, 273, 357, 429, 457, 561, 663, 693, 819, 1001, 1071, 1287, 1309, 1371, 1547, 1683, 1989, 2431, 3003, 3199, 3927, 4113, 4641, 5027, 5941, 7293, 7769, 9009, 9597, 11781, 13923, 15081, 17017, 17823, 21879, 23307, 28791, 35189, 41587, 45243, 51051, 53469, 54383, 65351, 69921, 85459, 100997, 105567, 124761, 153153, 163149, 196053, 256377, 302991, 316701, 374283, 457457, 489447, 588159, 598213, 706979, 769131, 908973, 1110967, 1372371, 1794639, 2120937, 3332901, 4117113, 5383917, 6362811, 7776769, 9998703, 23330307, 69990921]

約数ペア:

[(1, 69990921), (3, 23330307), (7, 9998703), (9, 7776769), (11, 6362811), (13, 5383917), (17, 4117113), (21, 3332901), (33, 2120937), (39, 1794639), (51, 1372371), (63, 1110967), (77, 908973), (91, 769131), (99, 706979), (117, 598213), (119, 588159), (143, 489447), (153, 457457), (187, 374283), (221, 316701), (231, 302991), (273, 256377), (357, 196053), (429, 163149), (457, 153153), (561, 124761), (663, 105567), (693, 100997), (819, 85459), (1001, 69921), (1071, 65351), (1287, 54383), (1309, 53469), (1371, 51051), (1547, 45243), (1683, 41587), (1989, 35189), (2431, 28791), (3003, 23307), (3199, 21879), (3927, 17823), (4113, 17017), (4641, 15081), (5027, 13923), (5941, 11781), (7293, 9597), (7769, 9009)]