19759803

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 31457280

約数和(自身を除く): 11697477

約数列:

[1, 3, 7, 21, 31, 93, 127, 217, 239, 381, 651, 717, 889, 1673, 2667, 3937, 5019, 7409, 11811, 22227, 27559, 30353, 51863, 82677, 91059, 155589, 212471, 637413, 940943, 2822829, 6586601, 19759803]

約数ペア:

[(1, 19759803), (3, 6586601), (7, 2822829), (21, 940943), (31, 637413), (93, 212471), (127, 155589), (217, 91059), (239, 82677), (381, 51863), (651, 30353), (717, 27559), (889, 22227), (1673, 11811), (2667, 7409), (3937, 5019)]