21214468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 42364224

約数和(自身を除く): 21149756

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 83, 148, 157, 166, 314, 332, 407, 628, 814, 913, 1628, 1727, 1826, 3071, 3454, 3652, 5809, 6142, 6908, 11618, 12284, 13031, 23236, 26062, 33781, 52124, 63899, 67562, 127798, 135124, 143341, 255596, 286682, 482147, 573364, 964294, 1928588, 5303617, 10607234, 21214468]

約数ペア:

[(1, 21214468), (2, 10607234), (4, 5303617), (11, 1928588), (22, 964294), (37, 573364), (44, 482147), (74, 286682), (83, 255596), (148, 143341), (157, 135124), (166, 127798), (314, 67562), (332, 63899), (407, 52124), (628, 33781), (814, 26062), (913, 23236), (1628, 13031), (1727, 12284), (1826, 11618), (3071, 6908), (3454, 6142), (3652, 5809)]