20459439

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{757}}^1$

素因数の和:797

約数の個数: 64

約数和(自身を含む): 40750080

約数和(自身を除く): 20290641

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 91, 99, 117, 143, 189, 231, 273, 297, 351, 429, 693, 757, 819, 1001, 1287, 2079, 2271, 2457, 3003, 3861, 5299, 6813, 8327, 9009, 9841, 15897, 20439, 24981, 27027, 29523, 47691, 58289, 68887, 74943, 88569, 108251, 143073, 174867, 206661, 224829, 265707, 324753, 524601, 619983, 757757, 974259, 1573803, 1859949, 2273271, 2922777, 6819813, 20459439]

約数ペア:

[(1, 20459439), (3, 6819813), (7, 2922777), (9, 2273271), (11, 1859949), (13, 1573803), (21, 974259), (27, 757757), (33, 619983), (39, 524601), (63, 324753), (77, 265707), (91, 224829), (99, 206661), (117, 174867), (143, 143073), (189, 108251), (231, 88569), (273, 74943), (297, 68887), (351, 58289), (429, 47691), (693, 29523), (757, 27027), (819, 24981), (1001, 20439), (1287, 15897), (2079, 9841), (2271, 9009), (2457, 8327), (3003, 6813), (3861, 5299)]