281391318

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{16937}}^1$

素因数の和:17029

約数の個数: 48

約数和(自身を含む): 665866656

約数和(自身を除く): 384475338

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1278, 1846, 2769, 5538, 8307, 16614, 16937, 33874, 50811, 101622, 152433, 220181, 304866, 440362, 660543, 1202527, 1321086, 1981629, 2405054, 3607581, 3963258, 7215162, 10822743, 15632851, 21645486, 31265702, 46898553, 93797106, 140695659, 281391318]

約数ペア:

[(1, 281391318), (2, 140695659), (3, 93797106), (6, 46898553), (9, 31265702), (13, 21645486), (18, 15632851), (26, 10822743), (39, 7215162), (71, 3963258), (78, 3607581), (117, 2405054), (142, 1981629), (213, 1321086), (234, 1202527), (426, 660543), (639, 440362), (923, 304866), (1278, 220181), (1846, 152433), (2769, 101622), (5538, 50811), (8307, 33874), (16614, 16937)]