19601538

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 25188222

約数列:

[1, 2, 3, 6, 11, 22, 33, 47, 66, 71, 89, 94, 141, 142, 178, 213, 267, 282, 426, 517, 534, 781, 979, 1034, 1551, 1562, 1958, 2343, 2937, 3102, 3337, 4183, 4686, 5874, 6319, 6674, 8366, 10011, 12549, 12638, 18957, 20022, 25098, 36707, 37914, 46013, 69509, 73414, 92026, 110121, 138039, 139018, 208527, 220242, 276078, 296993, 417054, 593986, 890979, 1781958, 3266923, 6533846, 9800769, 19601538]

約数ペア:

[(1, 19601538), (2, 9800769), (3, 6533846), (6, 3266923), (11, 1781958), (22, 890979), (33, 593986), (47, 417054), (66, 296993), (71, 276078), (89, 220242), (94, 208527), (141, 139018), (142, 138039), (178, 110121), (213, 92026), (267, 73414), (282, 69509), (426, 46013), (517, 37914), (534, 36707), (781, 25098), (979, 20022), (1034, 18957), (1551, 12638), (1562, 12549), (1958, 10011), (2343, 8366), (2937, 6674), (3102, 6319), (3337, 5874), (4183, 4686)]