2021054140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{105373}}^1$

素因数の和:105526

約数の個数: 48

約数和(自身を含む): 4885981632

約数和(自身を除く): 2864927492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3836, 4795, 9590, 19180, 105373, 210746, 421492, 526865, 737611, 1053730, 1475222, 2107460, 2950444, 3688055, 7376110, 14436101, 14752220, 28872202, 57744404, 72180505, 101052707, 144361010, 202105414, 288722020, 404210828, 505263535, 1010527070, 2021054140]

約数ペア:

[(1, 2021054140), (2, 1010527070), (4, 505263535), (5, 404210828), (7, 288722020), (10, 202105414), (14, 144361010), (20, 101052707), (28, 72180505), (35, 57744404), (70, 28872202), (137, 14752220), (140, 14436101), (274, 7376110), (548, 3688055), (685, 2950444), (959, 2107460), (1370, 1475222), (1918, 1053730), (2740, 737611), (3836, 526865), (4795, 421492), (9590, 210746), (19180, 105373)]