20968812

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 54949440

約数和(自身を除く): 33980628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 79, 101, 146, 158, 202, 219, 237, 292, 303, 316, 404, 438, 474, 606, 657, 711, 876, 909, 948, 1212, 1314, 1422, 1818, 2628, 2844, 3636, 5767, 7373, 7979, 11534, 14746, 15958, 17301, 22119, 23068, 23937, 29492, 31916, 34602, 44238, 47874, 51903, 66357, 69204, 71811, 88476, 95748, 103806, 132714, 143622, 207612, 265428, 287244, 582467, 1164934, 1747401, 2329868, 3494802, 5242203, 6989604, 10484406, 20968812]

約数ペア:

[(1, 20968812), (2, 10484406), (3, 6989604), (4, 5242203), (6, 3494802), (9, 2329868), (12, 1747401), (18, 1164934), (36, 582467), (73, 287244), (79, 265428), (101, 207612), (146, 143622), (158, 132714), (202, 103806), (219, 95748), (237, 88476), (292, 71811), (303, 69204), (316, 66357), (404, 51903), (438, 47874), (474, 44238), (606, 34602), (657, 31916), (711, 29492), (876, 23937), (909, 23068), (948, 22119), (1212, 17301), (1314, 15958), (1422, 14746), (1818, 11534), (2628, 7979), (2844, 7373), (3636, 5767)]