19910792

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 41783280

約数和(自身を除く): 21872488

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 121, 134, 242, 268, 307, 484, 536, 614, 737, 968, 1228, 1474, 2456, 2948, 3377, 5896, 6754, 8107, 13508, 16214, 20569, 27016, 32428, 37147, 41138, 64856, 74294, 82276, 148588, 164552, 226259, 297176, 452518, 905036, 1810072, 2488849, 4977698, 9955396, 19910792]

約数ペア:

[(1, 19910792), (2, 9955396), (4, 4977698), (8, 2488849), (11, 1810072), (22, 905036), (44, 452518), (67, 297176), (88, 226259), (121, 164552), (134, 148588), (242, 82276), (268, 74294), (307, 64856), (484, 41138), (536, 37147), (614, 32428), (737, 27016), (968, 20569), (1228, 16214), (1474, 13508), (2456, 8107), (2948, 6754), (3377, 5896)]