20199421816

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{877}}^1\times {\mathrm{21647}}^1$

素因数の和:22556

約数の個数: 64

約数和(自身を含む): 45616665600

約数和(自身を除く): 25417243784

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 877, 1064, 1754, 3508, 6139, 7016, 12278, 16663, 21647, 24556, 33326, 43294, 49112, 66652, 86588, 116641, 133304, 151529, 173176, 233282, 303058, 411293, 466564, 606116, 822586, 933128, 1212232, 1645172, 2879051, 3290344, 5758102, 11516204, 18984419, 23032408, 37968838, 75937676, 132890933, 151875352, 265781866, 360703961, 531563732, 721407922, 1063127464, 1442815844, 2524927727, 2885631688, 5049855454, 10099710908, 20199421816]

約数ペア:

[(1, 20199421816), (2, 10099710908), (4, 5049855454), (7, 2885631688), (8, 2524927727), (14, 1442815844), (19, 1063127464), (28, 721407922), (38, 531563732), (56, 360703961), (76, 265781866), (133, 151875352), (152, 132890933), (266, 75937676), (532, 37968838), (877, 23032408), (1064, 18984419), (1754, 11516204), (3508, 5758102), (6139, 3290344), (7016, 2879051), (12278, 1645172), (16663, 1212232), (21647, 933128), (24556, 822586), (33326, 606116), (43294, 466564), (49112, 411293), (66652, 303058), (86588, 233282), (116641, 173176), (133304, 151529)]