19702278

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 80

約数和(自身を含む): 48003120

約数和(自身を除く): 28300842

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 37, 38, 54, 57, 74, 81, 111, 114, 162, 171, 173, 222, 333, 342, 346, 513, 519, 666, 703, 999, 1026, 1038, 1406, 1539, 1557, 1998, 2109, 2997, 3078, 3114, 3287, 4218, 4671, 5994, 6327, 6401, 6574, 9342, 9861, 12654, 12802, 14013, 18981, 19203, 19722, 28026, 29583, 37962, 38406, 56943, 57609, 59166, 88749, 113886, 115218, 121619, 172827, 177498, 243238, 266247, 345654, 364857, 518481, 532494, 729714, 1036962, 1094571, 2189142, 3283713, 6567426, 9851139, 19702278]

約数ペア:

[(1, 19702278), (2, 9851139), (3, 6567426), (6, 3283713), (9, 2189142), (18, 1094571), (19, 1036962), (27, 729714), (37, 532494), (38, 518481), (54, 364857), (57, 345654), (74, 266247), (81, 243238), (111, 177498), (114, 172827), (162, 121619), (171, 115218), (173, 113886), (222, 88749), (333, 59166), (342, 57609), (346, 56943), (513, 38406), (519, 37962), (666, 29583), (703, 28026), (999, 19722), (1026, 19203), (1038, 18981), (1406, 14013), (1539, 12802), (1557, 12654), (1998, 9861), (2109, 9342), (2997, 6574), (3078, 6401), (3114, 6327), (3287, 5994), (4218, 4671)]