20123984517

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1\times {\mathrm{1831}}^1$

素因数の和:2298

約数の個数: 64

約数和(自身を含む): 33407238144

約数和(自身を除く): 13283253627

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 317, 381, 889, 951, 1651, 1831, 2219, 2667, 4121, 4953, 5493, 6657, 11557, 12363, 12817, 23803, 28847, 34671, 38451, 40259, 71409, 86541, 120777, 166621, 232537, 281813, 499863, 523367, 580427, 697611, 845439, 1570101, 1627759, 1741281, 3022981, 3663569, 4062989, 4883277, 7545551, 9068943, 10990707, 12188967, 21160867, 22636653, 52818857, 63482601, 73714229, 158456571, 221142687, 515999603, 958284977, 1547998809, 2874854931, 6707994839, 20123984517]

約数ペア:

[(1, 20123984517), (3, 6707994839), (7, 2874854931), (13, 1547998809), (21, 958284977), (39, 515999603), (91, 221142687), (127, 158456571), (273, 73714229), (317, 63482601), (381, 52818857), (889, 22636653), (951, 21160867), (1651, 12188967), (1831, 10990707), (2219, 9068943), (2667, 7545551), (4121, 4883277), (4953, 4062989), (5493, 3663569), (6657, 3022981), (11557, 1741281), (12363, 1627759), (12817, 1570101), (23803, 845439), (28847, 697611), (34671, 580427), (38451, 523367), (40259, 499863), (71409, 281813), (86541, 232537), (120777, 166621)]