19996312

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1759}}^1$

素因数の和:1808

約数の個数: 48

約数和(自身を含む): 45144000

約数和(自身を除く): 25147688

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 49, 56, 58, 98, 116, 196, 203, 232, 392, 406, 812, 1421, 1624, 1759, 2842, 3518, 5684, 7036, 11368, 12313, 14072, 24626, 49252, 51011, 86191, 98504, 102022, 172382, 204044, 344764, 357077, 408088, 689528, 714154, 1428308, 2499539, 2856616, 4999078, 9998156, 19996312]

約数ペア:

[(1, 19996312), (2, 9998156), (4, 4999078), (7, 2856616), (8, 2499539), (14, 1428308), (28, 714154), (29, 689528), (49, 408088), (56, 357077), (58, 344764), (98, 204044), (116, 172382), (196, 102022), (203, 98504), (232, 86191), (392, 51011), (406, 49252), (812, 24626), (1421, 14072), (1624, 12313), (1759, 11368), (2842, 7036), (3518, 5684)]