19905615933

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1\times {\mathrm{66041}}^1$

素因数の和:66545

約数の個数: 32

約数和(自身を含む): 31378931712

約数和(自身を除く): 11473315779

約数列:

[1, 3, 7, 21, 31, 93, 217, 463, 651, 1389, 3241, 9723, 14353, 43059, 66041, 100471, 198123, 301413, 462287, 1386861, 2047271, 6141813, 14330897, 30576983, 42992691, 91730949, 214038881, 642116643, 947886473, 2843659419, 6635205311, 19905615933]

約数ペア:

[(1, 19905615933), (3, 6635205311), (7, 2843659419), (21, 947886473), (31, 642116643), (93, 214038881), (217, 91730949), (463, 42992691), (651, 30576983), (1389, 14330897), (3241, 6141813), (9723, 2047271), (14353, 1386861), (43059, 462287), (66041, 301413), (100471, 198123)]