28389914

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 53078400

約数和(自身を除く): 24688486

約数列:

[1, 2, 7, 14, 19, 38, 49, 79, 98, 133, 158, 193, 266, 386, 553, 931, 1106, 1351, 1501, 1862, 2702, 3002, 3667, 3871, 7334, 7742, 9457, 10507, 15247, 18914, 21014, 25669, 30494, 51338, 73549, 106729, 147098, 179683, 213458, 289693, 359366, 579386, 747103, 1494206, 2027851, 4055702, 14194957, 28389914]

約数ペア:

[(1, 28389914), (2, 14194957), (7, 4055702), (14, 2027851), (19, 1494206), (38, 747103), (49, 579386), (79, 359366), (98, 289693), (133, 213458), (158, 179683), (193, 147098), (266, 106729), (386, 73549), (553, 51338), (931, 30494), (1106, 25669), (1351, 21014), (1501, 18914), (1862, 15247), (2702, 10507), (3002, 9457), (3667, 7742), (3871, 7334)]