131671197

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1063

約数の個数: 64

約数和(自身を含む): 241254400

約数和(自身を除く): 109583203

約数列:

[1, 3, 7, 9, 19, 21, 27, 37, 57, 63, 111, 133, 171, 189, 259, 333, 399, 513, 703, 777, 991, 999, 1197, 2109, 2331, 2973, 3591, 4921, 6327, 6937, 6993, 8919, 14763, 18829, 18981, 20811, 26757, 36667, 44289, 56487, 62433, 110001, 131803, 132867, 169461, 187299, 256669, 330003, 395409, 508383, 696673, 770007, 990009, 1186227, 2090019, 2310021, 3558681, 4876711, 6270057, 6930063, 14630133, 18810171, 43890399, 131671197]

約数ペア:

[(1, 131671197), (3, 43890399), (7, 18810171), (9, 14630133), (19, 6930063), (21, 6270057), (27, 4876711), (37, 3558681), (57, 2310021), (63, 2090019), (111, 1186227), (133, 990009), (171, 770007), (189, 696673), (259, 508383), (333, 395409), (399, 330003), (513, 256669), (703, 187299), (777, 169461), (991, 132867), (999, 131803), (1197, 110001), (2109, 62433), (2331, 56487), (2973, 44289), (3591, 36667), (4921, 26757), (6327, 20811), (6937, 18981), (6993, 18829), (8919, 14763)]