19995528

素因数分解:

$2^3\times 3^1\times 7^4\times {\mathrm{347}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 58484880

約数和(自身を除く): 38489352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 343, 347, 392, 588, 686, 694, 1029, 1041, 1176, 1372, 1388, 2058, 2082, 2401, 2429, 2744, 2776, 4116, 4164, 4802, 4858, 7203, 7287, 8232, 8328, 9604, 9716, 14406, 14574, 17003, 19208, 19432, 28812, 29148, 34006, 51009, 57624, 58296, 68012, 102018, 119021, 136024, 204036, 238042, 357063, 408072, 476084, 714126, 833147, 952168, 1428252, 1666294, 2499441, 2856504, 3332588, 4998882, 6665176, 9997764, 19995528]

約数ペア:

[(1, 19995528), (2, 9997764), (3, 6665176), (4, 4998882), (6, 3332588), (7, 2856504), (8, 2499441), (12, 1666294), (14, 1428252), (21, 952168), (24, 833147), (28, 714126), (42, 476084), (49, 408072), (56, 357063), (84, 238042), (98, 204036), (147, 136024), (168, 119021), (196, 102018), (294, 68012), (343, 58296), (347, 57624), (392, 51009), (588, 34006), (686, 29148), (694, 28812), (1029, 19432), (1041, 19208), (1176, 17003), (1372, 14574), (1388, 14406), (2058, 9716), (2082, 9604), (2401, 8328), (2429, 8232), (2744, 7287), (2776, 7203), (4116, 4858), (4164, 4802)]