20187978678

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{1301}}^1\times {\mathrm{41051}}^1$

素因数の和:42370

約数の個数: 64

約数和(自身を含む): 51311715840

約数和(自身を除く): 31123737162

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 1301, 2602, 3903, 7806, 9107, 11709, 18214, 23418, 27321, 35127, 41051, 54642, 70254, 81963, 82102, 123153, 163926, 245889, 246306, 287357, 369459, 491778, 574714, 738918, 862071, 1108377, 1724142, 2216754, 2586213, 5172426, 7758639, 15517278, 53407351, 106814702, 160222053, 320444106, 373851457, 480666159, 747702914, 961332318, 1121554371, 1441998477, 2243108742, 2883996954, 3364663113, 6729326226, 10093989339, 20187978678]

約数ペア:

[(1, 20187978678), (2, 10093989339), (3, 6729326226), (6, 3364663113), (7, 2883996954), (9, 2243108742), (14, 1441998477), (18, 1121554371), (21, 961332318), (27, 747702914), (42, 480666159), (54, 373851457), (63, 320444106), (126, 160222053), (189, 106814702), (378, 53407351), (1301, 15517278), (2602, 7758639), (3903, 5172426), (7806, 2586213), (9107, 2216754), (11709, 1724142), (18214, 1108377), (23418, 862071), (27321, 738918), (35127, 574714), (41051, 491778), (54642, 369459), (70254, 287357), (81963, 246306), (82102, 245889), (123153, 163926)]