1997184497

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 2743843200

約数和(自身を除く): 746658703

約数列:

[1, 7, 11, 17, 41, 77, 119, 121, 187, 199, 287, 289, 451, 697, 847, 1309, 1393, 2023, 2057, 2189, 3157, 3179, 3383, 4879, 4961, 7667, 8159, 11849, 14399, 15323, 22253, 23681, 24079, 34727, 34969, 37213, 53669, 57113, 57511, 82943, 84337, 89749, 130339, 138703, 168553, 244783, 260491, 402577, 409343, 590359, 628243, 632621, 912373, 970921, 987239, 1433729, 1525733, 2357951, 2865401, 4428347, 6910673, 6958831, 10036103, 10680131, 16505657, 16783063, 25937461, 48711817, 117481441, 181562227, 285312071, 1997184497]

約数ペア:

[(1, 1997184497), (7, 285312071), (11, 181562227), (17, 117481441), (41, 48711817), (77, 25937461), (119, 16783063), (121, 16505657), (187, 10680131), (199, 10036103), (287, 6958831), (289, 6910673), (451, 4428347), (697, 2865401), (847, 2357951), (1309, 1525733), (1393, 1433729), (2023, 987239), (2057, 970921), (2189, 912373), (3157, 632621), (3179, 628243), (3383, 590359), (4879, 409343), (4961, 402577), (7667, 260491), (8159, 244783), (11849, 168553), (14399, 138703), (15323, 130339), (22253, 89749), (23681, 84337), (24079, 82943), (34727, 57511), (34969, 57113), (37213, 53669)]